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Books authored

  1. SKLAR, D., TRACHTENBERG, A., LUCKE, C., BRUSDEYLINS, M., SPEIDEL, U., SCHMIDT, S. 'PHP5 Kochbuch', (3rd edition), Cologne, O'Reilly Verlag, 912 pages, 2009, http://www.oreilly.de/catalog/phpckbk3ger/
  2. HEINLE, N., PEÑA, B., SPEIDEL, U. 'Webdesign mit JavaScript & Ajax', (2nd edn), Cologne, O'Reilly Verlag, 254 pages, 2006, http://my.safaribooksonline.com/book/web-development/ajax/9783897214712
  3. SKLAR, D., TRACHTENBERG, A., SPEIDEL, U., SCHMIDT, S. 'PHP5 Kochbuch', (2nd edition), Cologne, O'Reilly Verlag, 766 pages, 2005, http://www.oreilly.de/catalog/phpckbk2ger/
  4. GÜNTHER, U.* PHP5 - Ein praktischer Einstieg, (2edn), Cologne, O'Reilly Verlag, 271 pages, 2004, http://www.oreilly.de/catalog/einphp2ger/
  5. GÜNTHER, U.* PHP - Ein praktischer Einstieg, Cologne, O'Reilly Verlag, 259 pages, 2002, http://www.oreilly.de/catalog/einphpger/

Book chapters and books edited/translated

  1. MILNE, S., CLARK, V., SPEIDEL, U., NODDER, C., DOBBIN, N., 'ICT and Tourism Enterprise Collaboration in Rural New Zealand', chapter 18 in Salmons, J., Wilson, L. (eds.), Handbook of Research on Electronic Collaboration and Organizational Synergy, IGI Global, 2009
  2. GÜNTHER, U.*, MILNE, S., MASON, D.M. 'New Zealand Residents and Japanese Tourists: can the Internet Improve relationships and Linkages?', In: P. Morris (ed.), Dynamics of Japanese Tourism in New Zealand., Wellington, Asian Studies Institute, Victoria University of Wellington, p.75-82, 2002
  3. FLANAGAN, D., SCHULTEN, L., SPEIDEL, U. 'JavaScript - Das umfassende Referenzwerk', 3rd edn., Cologne, O'Reilly Verlag, 2007, http://www.oreilly.de/catalog/jscript5ger/
  4. HUDSON, P., SPEIDEL, S., SPEIDEL, U. 'PHP in a Nutshell', Cologne, O'Reilly Verlag, 400 pages, 2006, http://www.oreilly.de/catalog/phpnutger/
  5. DINNEEN, M.J., SPEIDEL, U., TAYLOR, D. Proceedings of the 2005 IEEE Information Theory Society International Information Theory Workshop on Coding and Complexity (ITW2005), Rotorua, IEEE, 291 pages, 2005, DOI 10.1109/ITWTPI.2005.1543941
  6. BASS, S., SPEIDEL, S., SPEIDEL, U., SCHULTEN, L. 'Wenn der PC nervt ... ', Cologne, O'Reilly Verlag, 224 pages, 2004, http://www.oreilly.de/catalog/pcannoyger/
  7. TRACHTENBERG, A., SPEIDEL, S., SPEIDEL, U., 'Umsteigen auf PHP5', Cologne, O'Reilly Verlag, 330 pages, 2004, http://www.oreilly.de/catalog/upgradephp5ger/
  8. SKLAR, D., TRACHTENBERG, A., STAUDEMEYER, J., SPEIDEL, U. 'PHP Kochbuch', (1st edition), Cologne, O'Reilly Verlag, 656 pages, 2003, http://www.oreilly.de/catalog/phpckbkger/
  9. BRADENBAUGH, J., GÜNTHER, U.* 'JavaScript-Kochbuch f&uumml;r Webanwendungen', Cologne, O'Reilly Verlag, 512 pages, 2000, http://www.oreilly.de/catalog/jscookger/
  10. SIEVER, E., SPAINHOUR, S., PATHWARDAN, N., DALHEIMER, M.K., SURMELI, D., RICHTER, G., BEYER, S., GÜNTHER, U.*, ROESCHIES, A, 'Perl in a Nutshell', Cologne, O'Reilly Verlag, 728 pages, 1999, http://www.oreilly.de/catalog/pnutger/

Conference papers

  1. SPEIDEL, U., PUCHINGER, S., BOSSERT, M. (2017). Constraints for coded tunnels across long latency bottlenecks with ARQ-based congestion control. IEEE International Symposium on Information Theory, June 25 - 30, 2017 - Aachen, Germany.
  2. SPEIDEL, U., COCKER, E., MÉDARD, M., VINGELMANN, P., HEIDE, J. (2017). Topologies for the Provision of Network-Coded Services via Shared Satellite Channels. In 9th International Conference on Advances in Satellite and Space Communications, SPACOMM 2017, April 23 - 27, 2017 - Venice, Italy. This paper won a best paper award.
  3. SPEIDEL, U., LEI QIAN, COCKER, E., VINGELMANN, P., HEIDE, J., MéDARD, M. (2016). Making the best of satellite links to Pacific Islands. APRICOT2016. Auckland.
  4. SPEIDEL, U. M. (2015). Classifying Distributions via Symbolic Entropy Estimation. In 10th International Conference on Information, Communications and Signal Processing. Singapore.
  5. COCKER, E., GHAZZI, F., & SPEIDEL, U. M. (2015). Quality Trend Measurement of Long-distance VoIP Communication via Estimated Mean Opinion Score. In 10th International Conference on Information, Communications and Signal Processing. Singapore.
  6. SPEIDEL, U. M., QIAN, L., COCKER, E., VINGELMANN, P., HEIDE, J., & MÉDARD, M. (2015). Can network coding mitigate TCP-induced queue oscillation on narrowband satellite links?. In P. Pillai, F. Hu, I. Otung, & G. Giambene (Eds.), Wireless and Satellite Systems - 7th International Conference, WiSATS 2015, Bradford, UK, July 6-7, 2015. Revised Selected Papers (pp. 301-314). Springer International Publishing. doi:10.1007/978-3-319-25479-1
  7. SPEIDEL, U. M., COCKER, E., VINGELMANN, P., HEIDE, J., & MÉDARD, M. (2015). Can network coding bridge the digital divide in the Pacific? In Asia Pacific Regional Internet Governance Forum 2015. Macau.
  8. SPEIDEL, U. M., QIAN, L., COCKER, E., VINGELMANN, P., HEIDE, J., & MÉDARD, M. (2015). Can network coding mitigate TCP-induced queue oscillation on narrowband satellite links?. In 7th EAI International Conference on Wireless and Satellite Systems. Bradford, UK. Retrieved from http://www.psats.eu/2015/show/program-final
  9. SPEIDEL, U. M., COCKER, E., VINGELMANN, P., HEIDE, J., & MÉDARD, M. (2015). Can network coding bridge the digital divide in the Pacific?. In 2015 International Symposium on Network Coding (pp. 86-90). Sydney, Australia. doi:10.1109/NETCOD.2015.7176795
  10. SPEIDEL, U., GULLIVER, A., MAKHDOUMI, A, MÉDARD, M., 'Using T-codes as locally decodable source codes', accepted for publication at IEEE International Workshop on Information Theory ITW2014, November 2-5, 2014, Hobart, Australia
  11. SPEIDEL, U., 'An Extended Similarity Distance for Use with Computable Information Estimators', accepted for publication at the 13th International Symposium on Information Theory and its Applications (ISITA2014), October 26- 29, 2014, Melbourne, Australia
  12. MANOHARAN, S., MASTER, A., SPEIDEL, U., 'Complexity-based Steganalysis', accepted for publication at the 13th International Symposium on Information Theory and its Applications (ISITA2014), October 26-29, 2014, Melbourne, Australia
  13. COCKER, E., GHAZZI, F., SPEIDEL, U., DONG, M.-C., WONG, V., VINCK, A.J.H, YAMAMOTO, H., YOKOO, H., MORITA, H., FERREIRA, H., EMLEH, A., MCFADZIEN, R., PALELEI, S., EIMANN, R., 'Measurement of Buffer Requirement Trends for Real Time Traffic Over TCP', IEEE 15th International Conference on High Performance Switching and Routing, Vancouver, British Columbia, Canada 1-4 July 2014
  14. COCKER, E., SPEIDEL, U., REBENICH, N., NEVILLE, S., GULLIVER, A., EIMANN, R., NISAR, K., HASSAN, S., AZIZ, Z., DONG, M.-C., WONG, V., 'Measurement of packet train arrival conditions in high latency networks,' International Conference on Information, Communications and Signal Processing (ICICS), Taichung, Taiwan, December 10-13, 2013, paper P0190
  15. GULLIVER, T.A., SPEIDEL, U., 'On the ratio between the maximal T-complexity and the T-complexity of random strings', International Symposium on Information Theory and its Applications ISITA2012, Honolulu, Hawaii, USA, October 28-31, 2012, pp. 498-500, ISBN 978-1-4673-2521-9
  16. SPEIDEL, U., GULLIVER, T.A., 'An Analytic Upper Bound on T-Complexity', 2012 IEEE International Symposium on Information Theory, Boston, pp. 2706-2710, 1-6 July 2012, DOI 10.1109/ISIT.2012.6284014
  17. SPEIDEL, U. 'A forward-parsing randomness test based on the expected codeword length of T-codes', International Conference on Information, Communications and Signal Processing (ICICS), Singapore, 13-16 December, 2011, 10.1109/ICICS.2011.6173599
  18. SPEIDEL, U., GULLIVER, T.A., SHONGWE, T. 'Multicarrier Error Correction using T-codes', accepted for publication in Proceedings of IEEE PACRIM 2011, Victoria, B.C., Canada, 23-26 August 2011, DOI 10.1109/PACRIM.2011.6033011
  19. SHONGWE, T., SPEIDEL, U., SWART, T., FERREIRA, H. 'The Effect of Hamming Distances on Permutation Codes for Multiuser Communication in the Power Line Communications Channel', accepted for publication in IEEE AFRICON 2011, Livingstone (Zambia) 13-15 September 2011, 10.1109/AFRCON.2011.6072141
  20. SPEIDEL, U., SKUDLAREK, S. J., YAMAMOTO, H. 'Anomaly Detection of Sequence Data based on T-Information', 13th Workshop on Information-Based Induction Sciences (IBIS 2010), IEICE, Tokyo pp. 127-134, 2010 (in Japanese)
  21. SPEIDEL, U. 'Cyclic Equivalence Classes and Code Synchronisation of Variable-Length Codes', Proceedings of the 6th Asia Europe Workshop on Concepts in Information Theory (AEW), Ishigaki Island, Japan, October 22 - 24
  22. OHZEKI, K., WEI, Y.Y., IWATA, E., SPEIDEL, U. 'Basic Consideration of MPEG-2 Coded File Entropy and Lossless Re-encoding', International Multiconference on Computer Science and Information Technology - IMCSIT 2010, Wisla, Poland, 18-20 October 2010, p. 741-748, ISBN 978-1-4244-6432-6. This paper won a second prize at the conference.
  23. OHZEKI, K., WEI, Y.Y., SPEIDEL, U. 'Basic considerations for lossless re-encoding of MPEG coded files using V-V codes', IADIS International Conference on Computer Graphics, Visualization, Computer Vision and Image Processing 2010 (CGVCVIP 2010), Freiburg, Germany, 27 - 29 July 2010
  24. SPEIDEL, U., GULLIVER, T.A. 'A secure authentication system based on variable-length codes', International Symposium on Information Theory and its Applications/International Symposium on Spread Spectrum Techniques and Applications (ISITA2010/ISSSTA2010), Taichung, Taiwan, 17-20 October 2010, DOI 10.1109/ISITA.2010.5649672
  25. SPEIDEL, U., EIMANN, R.E.A. 'How well does Skype compress its call data?', International Conference on Advanced Infocomm Technology (ICAIT2010), Haikou (Hainan), China, 20-23 July 2010 (invited paper)
  26. SPEIDEL, U. 'A Note on the Estimation of String Complexity for Short Strings', 7th International Conference on Information, Communications, and Signal Processing (ICICS2009), Macau, 6-10 December 2009, p.1-5, DOI 10.1109/ICICS.2009.5397536
  27. SPEIDEL, U. 'A note on BSD codes constructed from T-codes', IEEE International Symposium on Information Theory (ISIT2009), Seoul, Korea, 28th June - 3rd July 2009, p.2418-2421, DOI 10.1109/ISIT.2009.5206026
  28. SPEIDEL, U. 'On the Maximum Shannon Entropy of the Full State Space of a T-Code Decoder', International Symposium on Information Theory and its Applications (ISITA2008), Auckland, 7-10 December 2008, p.1101-1104, DOI 10.1109/ISITA.2008.4895571
  29. SPEIDEL, U. 'On the bounds of the Titchener T-complexity', 6th International Symposium on Communication Systems, Networks and Digital Signal Processing (CNSDSP 2008), Graz, 23-25 July 2008, p.321-325, 10.1109/CSNDSP.2008.4610812
  30. SPEIDEL, U., EIMANN, R.E.A., BROWNLEE, J.N. 'Detecting network events via T-entropy', 6th International Conference on Information, Communications & Signal Processing, ICICS2007, Singapore, 10-13 Dec. 2007, p.1-5, DOI 10.1109/ICICS.2007.4449642
  31. SPEIDEL, U., GULLIVER, T.A. 'Synchronizing block codes with a decoder for variable-length codes', IEEE International Symposium on Information Theory (ISIT2007), Nice, France, 24th - 29th June 2007, p.1661-1664, DOI 10.1109/ISIT.2007.4557460
  32. SPEIDEL, U., TITCHENER, M.R., YANG, J. 'How well do practical information measures estimate the Shannon entropy?', International Symposium on Communications Systems, Networks and Digital Signal Processing (CSNDSP2006), University of Patras, Greece, 19-21 July 2006, p.861-865
  33. KAWAHARADA, K., OHZEKI, K., SPEIDEL, U. 'Information and Entropy Measurements on Video Sequences', 5th International Conference on Information, Communications and Signal Processing (ICICS2005), Bangkok, 6-9 December 2005, p.1150-1154, DOI 10.1109/ICICS.2005.1689234
  34. EIMANN, R., SPEIDEL, U., BROWNLEE, J.N. 'A T-entropy Analysis of the Slammer Worm Outbreak', Asia-Pacific Network Operations and Management Symposium (APNOMS2005), Okinawa, 27-30 September 2005, p.434-445
  35. YANG, J., SPEIDEL, U. 'A T-decomposition algorithm with O(n log n) time and space complexity', IEEE International Symposium on Information Theory 2005, Adelaide, 4-9 September 2005, p.23-27, DOI 10.1109/ISIT.2005.1523285
  36. YANG, J., SPEIDEL, U. 'String Parsing-based Similarity Detection', M. J. Dinneen, D. Taylor, and U. Speidel (eds.), IEEE ITSOC Information Theory Workshop 2005, Rotorua, 29 August - 1 September 2005, p.263-267, on CD, IEEE Catalog number 05EX1207C
  37. MILNE, S., SPEIDEL, U., GOODMAN, T., CLARK, V. 'Tourism, ICT and Regional Economic Development: the case of Kiwitrails', Frew (ed.), Information and Communication Technologies in Tourism 2005, Innsbruck, early 2005
  38. SPEIDEL, U. 'Constructing finite pseudo-random strings using a codeset-based entropy measure', 4th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP2004), Newcastle-upon-Tyne, 19-22 July 2004, p.91-91. This paper won a best paper award.
  39. SPEIDEL, U., JIA, Y. 'An Improved T-Decomposition Algorithm', ICICS-PCM03, ICICS-PCM03, 3, Singapore, 15-18 December 2003, p.1551-1555, DOI 10.1109/ICICS.2003.1292727
  40. MASON, D., MILNE, S., SPEIDEL, U. 'Community informatics in tourism', Second National Conference on Technology Futures, Sunshine Coast, Queensland, Australia, 23 July 2003, p.37-45
  41. SPEIDEL, U., JIA, Y. 'T-information: A New Measure for Similarity Comparison', 3rd Conference on Discrete Mathematics and Computer Science (DMTCS03), Dijon, July 2003, p.29-39
  42. SPEIDEL, U. 'An Entropy Measure for Finite Strings based on the Shannon Entropy of a Code Set', IEEE International Symposium on Information Theory (ISIT2003), Yokohama, Japan, June 29 - July 4, 2003, p.25-25, DOI 10.1109/ISIT.2003.1228039
  43. GÜNTHER, U.*, MASON, D.M., MILNE, S., GOODMAN, T. 'Community Informatics in NZ: Applying an automated internet development tool', 4th IT in Regional Areas Conference (ITiRA), Rockhampton, Australia, 26-29 August 2002, p.189-201
  44. GÜNTHER, U.* 'T-Code Self-Synchronization and Pattern Decoding in the T-Complexity Measure', 3rd International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP2002), Stafford (UK), July 2002
  45. GÜNTHER, U.* 'Matching T-codes to a source', 3rd Intl. Conference on Information, Communications, and Signal Processing (ICICS2001), Singapore, November 2001, Paper 1A1.1 on CD, 5 pages when printed
  46. GÜNTHER, U.* 'Similarity Searches Using a Recursive String Parsing Algorithm', 2nd International Conference on Unconventional Models of Computation, UMC2K, I. Antoniou, C.S. Calude, and M.J. Dinneen (ed.), in Supplemental Papers for the 2nd International Conference on Unconventional Models of Computation, Brussels, 13 - 16 December 2000, p.56-63
  47. GÜNTHER U., ASSANOVICH, B. 'Variable-Length Codes for Sources with Equiprobable Symbols', International Symposium on Information Theory and Its Applications, ISITA2000, Honolulu, Hawaii, 5-8 November 2000, p.244-247
  48. COSTEA, I., GÜNTHER, U.*, NICOLESCU, R., 'Collaborative Engineering on the Web, CESA'98, IMACS Multiconference, Symposium on Industrial and Manufacturing Systems, Nabeul-Hammamet, Tunisia, April 1-4, 1998, page 373.
  49. GÜNTHER, U.*, NICOLESCU, R. 'A Low-Cost Decoder for Arbitrary Binary Variable-Length Codes', First Joint Australia & New Zealand biennial conference on Digital Image & Vision Computing Techniques and Applications (DICTA'97), 10-12 December 1997, Massey University, Albany, Auckland, New Zealand, page 279.
  50. GÜNTHER, TITCHENER, M.R. 'Calculating the Expected Synchronisation Delay for T-Code Sets', International Workshop on Audio and Video Services over Packet Networks (AVSPN'97), Robert-Gordon-University Aberdeen, Scotland, 15-16 September 1997, page 71.
  51. GÜNTHER, TITCHENER, M.R. 'Codelength Distributions of T-Code Codesets under Simple Strictly Minimal Augmentation', NZ Computer Science Research Students' Conference 1995

Journal articles

  1. REBENICH, N., GULLIVER, T.A., NEVILLE, S., SPEIDEL, U. (2017). An analog of the prime number theorem for finite fields via truncated polylogarithm expansions. Mathematics of Computation, published electronically May 2017, https://doi.org/10.1090/mcom/3247
  2. REBENICH, N., SPEIDEL, U., NEVILLE, S., GULLIVER, T. 'FLOTT - A Fast, Low Memory T-transform Algorithm for Measuring String Complexity', IEEE Transactions on Computers, (63), 2014, pp. 917-926
  3. SPEIDEL, U., GULLIVER, T.A., 'On the codeword length distribution of T-codes', IEICE Transactions on fundamentals of Electronics, Communications and Computer Sciences, E95-A(5), pp. 909-917, 2012
  4. OHZEKI, K., OKUMURA, H., WEI, Y.Y., IWATA, E., SPEIDEL, U., 'A lossless re-encoding of MPEG-2 coded file by integrating four motion vectors', International Journal of Computer Science and Applications 8(1):14-35, 2011, ISSN 0972-9038
  5. SPEIDEL, U., GULLIVER, T.A., MAKWAKWA, I. 'On the Generation of Aperiodic and Periodic Necklaces via T-augmentation', Fundamenta Informaticae, 83, (12), p91-107, 2008, ISSN 0169-2968
  6. SPEIDEL, U., BROWNLEE, J.N., EIMANN, R.E.A. 'Entropy Techniques for Network Event Detection', Mediterranean Journal of Computers and Networks, 4, (1), p20-29, 2008, ISSN 1744-2397
  7. SPEIDEL, U. 'Constructing finite pseudo-random strings using codeset-based entropy measures', IEE Proceedings - Circuits Devices and Systems, 153, (4), p315-319, 2006, DOI 10.1049/IP-CDS:20050168
  8. TITCHENER, M.R., GULLIVER, A., NICOLESCU, R., SPEIDEL, U., STAIGER, L. 'Deterministic Complexity and Entropy', Fundamenta Informaticae, 64(1-4), p443-461, 2005, ISSN 0169-2968
  9. SPEIDEL, U., YANG, J. 'A Fast T-decomposition Algorithm', Journal for Universal Computer Science, 11, (6), p1083-1101, 2005, http://www.jucs.org/jucs_11_6/a_fast_t_decomposition
  10. SPEIDEL, U., MILNE, S., GOODMAN, T., WEST-NEWMAN, T. 'Tourism and community informatics: the case of Kiwitrails', Tourism Culture and Communication, 5, (2), p93-104, 2004
  11. COSTEA, I., NICOLESCU, R., GÜNTHER, U.* 'Coping with File Formats on the Internet', Computer Communications 20, 16, pages 1437-1447, January 1998.
  12. GÜNTHER, U.*, HERTLING, P., NICOLESCU, R., TITCHENER, M.R. 'Representing Variable-Length Codes in Fixed-Length T-Depletion Format in Encoders and Decoders', Journal of Universal Computer Science (J.UCS), Vol. 3, No. 11; November 1997.
  13. GÜNTHER, U.*, TITCHENER, M.R. 'Calculating the Expected Synchronisation Delay for T-Code Sets', IEE Proceedings (Communications), v.144, issue 3, page 121, June 1997.
  14. GÜNTHER, U.* 'Data Compression and Serial Communication with Generalized T-Codes', Journal of Universal Computer Science (J.UCS), Vol. 2, No. 11; November 28, 1996.

Technical reports

  1. SPEIDEL, U. 'A Forward-Parsing Randomness Test Based on the Expected Codeword Length of T-codes', CDMTCS Research Report No. 403, Centre for Discrete Mathematics and Theoretical Computer Science, May 2011, 14 pages
  2. GULLIVER, A., SPEIDEL, U. 'On T-codes and necklaces', CDMTCS Research Report No. 290, Centre for Discrete Mathematics and Theoretical Computer Science, October 2006, 15 pages
  3. SPEIDEL, U. 'T-Complexity and T-Information Theory - an Executive Summary, 2nd revised version', CDMTCS Research Report No. 286, Centre for Discrete Mathematics and Theoretical Computer Science, October 2006, 14 pages
  4. TITCHENER, M.R., SPEIDEL, U., YANG, J. 'A Comparison of Practical Information Measures', CDMTCS Report Series No. 267, Centre for Discrete Mathematics and Theoretical Computer Science, May 2005, 10 pages
  5. EIMANN, R.E.A., SPEIDEL, U., BROWNLEE, J.N., YANG, J. 'Network Event Detection with T-Entropy', CDMTCS Report Series No. 266, Centre for Discrete Mathematics and Theoretical Computer Science, May 2005, 13 pages
  6. SPEIDEL, U., YANG, J. 'A T-decomposition Algorithm with O(n log n) Time and Space Complexity', CDMTCS Report Series No. 259, Centre for Discrete Mathematics and Theoretical Computer Science, January 2005, 16 pages
  7. TITCHENER, M.R., GULLIVER, A., NICOLESCU, R., SPEIDEL, U., STAIGER, L. 'Deterministic Complexity and Entropy', CDMTCS Research Report No. 255, Centre for Discrete Mathematics and Theoretical Computer Science, December 2004, 19 pages
  8. GÜNTHER, U.* 'An Entropy Measure for Finite Strings based on the Shannon Entropy of a Code Set', CDMTCS Research Report 204, Centre for Discrete Mathematics and Theoretical Computer Science, December 2002, 7 pages
  9. GÜNTHER, U.*, JIA, Y. 'An Improved T-Decomposition Algorithm', CDMTCS Research Report No. 203, Centre for Discrete Mathematics and Theoretical Computer Science, December 2002, 9 pages
  10. GÜNTHER, U.* 'Matching T-Codes to a Source', CDMTCS Research Report No. 153, Centre for Discrete Mathematics and Theoretical Computer Science, April 2001, 14 pages
  11. GÜNTHER, U.* 'T-Complexity and T-Information Theory - an Executive Summary', CDMTCS Research Report No. 149, Centre for Discrete Mathematics and Theoretical Computer Science, February 2001, 11 pages
  12. ASSANOVICH, B., GÜNTHER, U.* 'Variable-Length Codes for Sources with Equiprobable Symbols', CDMTCS Research Report No. 103, Centre for Discrete Mathematics and Theoretical Computer Science, May 1999.
  13. GÜNTHER, U.*, HERTLING, P., NICOLESCU, R., TITCHENER, M.R. 'Representing Variable-Length Codes in Fixed-Length T-Depletion Format in Encoders and Decoders', CDMTCS Research Report No. 44, Centre for Discrete Mathematics and Theoretical Computer Science, August 1997.
  14. GÜNTHER, U.*, NICOLESCU, R., TITCHENER, M.R. 'Even T-Code Sets', Tamaki Report Series No.10, December 1995

Theses

* Note: Publications prior to 2003 appeared under my pre-marital surname Günther* (Guenther).

My books with O'Reilly Verlag

Webdesign mit JavaScript & Ajax
by Nick Heinle; Bill Peņa; Ulrich Speidel
O'Reilly-Verlag, Köln, 2006
ISBN: 978-3-89721-471-2.

O'Reilly Verlag wanted a German version of the US original. I reworked the book and added the chapters on Ajax.

PHP5 Kochbuch
by David Sklar, Adam Trachtenberg, Ulrich Speidel, Stephan Schmidt
Second Edition
O'Reilly-Verlag, Köln, 2005
ISBN: 978-3-89721-409-5.

O'Reilly Verlag were keen to have a PHP5 version of the "Cookbook", so got Stephan Schmidt and myself to re-work the German version of it to adapt it to PHP5 and its new features.

The title was quite successful and a 3rd edition appeared in 2009.

PHP - Ein praktischer Einstieg (first edition)
PHP5 - Ein praktischer Einstieg (second edition 2004)
by Ulrich Günther
O'Reilly-Verlag, Köln, May 2004
ISBN 3897212765 (first edition)
ISBN 3897212781 (second edition)

The sales rank of the first edition of the book hit 65 on amazon.de on one occasion, and got so popular with the booksellers that O'Reilly insisted that the book be continued under my pre-marital name.


Book Translations / Editing for O'Reilly Verlag

Into German:
   JavaScript - Das umfassende Referenzwerk
by David Flanagan
3rd Edition
O'Reilly-Verlag, Köln, 2007
ISBN: 978-3-89721-491-0.
My wife Sigrid translated around half of the book - I provided the technical editorship for the translation along with Lars Schulten. It's the translation of the 5th edition in English.

Title of the original: JavaScript - The Definitive Guide
published by O'Reilly Associates

Into German:
   PHP in a Nutshell
by Paul Hudson
O'Reilly-Verlag, Köln, 2006
ISBN: 978-3-89721-343-2.
My wife Sigrid translated most of the book - I provided the technical editorship and expanded the chapter on security.

Into German:
   Wenn der PC nervt...
by Steve Bass
First Edition
O'Reilly-Verlag, Köln, 2004
ISBN: 3-89721-174-2.
My wife Sigrid translated most of the book - I provided the technical editorship for the translation along with Lars Schulten. The book was on sales rank 43 at amazon.de at 12 noon NZT on 12/8/2004 after a nice review on the online site of German weekly "Der Spiegel".

Title of the original: PC Annoyances
published by O'Reilly Associates 2004

Into German:
   PHP Kochbuch
by David Sklar and Adam Trachtenberg
First Edition
O'Reilly-Verlag, Köln, 2003
ISBN: 3-89721-351-6.
I translated my half of the book with lots of help from my wife Sigrid (who didn't want to be mentioned on the outside cover), the other half was done by Jörg Staudemeyer.

Title of the original: PHP Cookbook
published by O'Reilly Associates 2003

Into German:
   JavaScript-Kochbuch für Webanwendungen
by Jerry Bradenbaugh
First Edition
O'Reilly-Verlag, Köln, 2000
ISBN: 3-89721-162-9.
as the sole translator

Title of the original: JavaScript Application Cookbook
published by O'Reilly Associates 1999

Into German:
   Perl in a Nutshell
by Ellen Siever, Stephen Spainhour, and Nathan Patwardhan
First Edition
O'Reilly-Verlag, Köln, 1999
ISBN: 3-89721-115-7.
as the translator for chapters 12 to 17 on databases and on networking
Other translators were M. K. Dalheimer, D. Surmeli, G. Richter, St. Beyer, and A. Roeschies

Title of the original: Perl in a Nutshell
published by O'Reilly Associates 1999