@String{pub-AW          = "Ad{\-d}i{\-s}on-Wes{\-l}ey"}
@String{pub-AW:adr      = "Reading, MA, USA"}

@Book{Goossens:LGC97,
  author =       "Michel Goossens and Sebastian Rahtz and Frank Mittelbach",
  title =        "The {\LaTeX} Graphics Companion",
  publisher =    pub-AW,
  year =         "1997",
  ISBN =         "0-201-85469-4",
  pages =        "xxvi + 554",
  address =      pub-AW:adr
}


@TechReport{	  hobby1992,
  author	= "John D. Hobby",
  title		= "{A User's Manual for MetaPost}",
  year		= "1992",
  month		= apr,
  language	= "english",
  institution	= "AT\&T Bell Laboratories, Murray Hill, New Jersey",
  date		= "April 1992",
  number	= "162",
  npages	= "ii+88~pages",
}

@Book{		  knuth1997,
  author	= "Donald E. Knuth",
  title		= "{The Art of Computer Programming, volumes 1, 2 and 3}",
  year		= "1997",
  publisher	= "Addison-Wesley Publishing Company",
  editor	= "",
  language	= "english",
  npages	= "",
  note		= "New editions."
}

@Misc{knuth1989,
  author	= "Donald E. Knuth",
  title		= "{MFT, version 2.0}",
  year		= "1989",
  publisher	= "",
  editor	= "",
  language	= "english",
  npages	= "",
  note		= "Standard {\TeX} distribution"
}

@Misc{gifmerge,
  author       = "Ren{\'e} K. M{\"u}ller",
  title        = "GIFMerge, version 1.33",
  year         = "1996",
  date         = "July 1996",
  note         = "Available at
                   \url{http://www.iis.ee.ethz.ch/~kiwi/GIFMerge/}.",
}

@Misc{netpbm,
  author       = "Bill Davidsen",  
  title        = "NETPBM",
  year         = "1993",
  note         = "Available for instance 
          at \url{ftp://ftp.wustl.edu/graphics/graphics/packages/NetPBM}.",
}

@Misc{truchet1995,
  author	= "Denis Roegel",
  title		= "{A \MP{} solution to the Truchet tiling problem}",
  year		= "1995",
  note          = "On CTAN under \texttt{graphics/metapost/macros/truchet}"
  }