@InProceedings{	  krsul96authorship,
  author =	 {I. Krsul and E. H. Spafford},
  title =	 {Authorship Analysis: Identifying the Author of a
                  Program},
  booktitle =	 {Proc. 18th {NIST}-{NCSC} National Information
                  Systems Security Conference},
  year =	 1996,
  pages =	 {514--524},
  section = {SOFTWARE-WATERMARKING}
}