@book{GOOSSENS:2005, 
  author={Goossens, M. and Mittelbach, F. and Rahtz, S.},
  title={The LATEX Graphics Companion: Il\-lu\-stra\-ting Documents with TEX and PostScript},
  publisher={Addison-Wesley},
  year={2005},
  address={Reading, Ma.},
} 

@book{MITTELBACH:2006, 
  author={Mittelbach, F. and Goossens, M.},
  title={The LaTeX companion},
  publisher={Addison-Wesley},
  year={2006},
  address={Boston},
  edition={5th},
}