@Book{tlgc2,
  author	= {Goosens, Michel and Mittelbach, Frank and Rahtz, Sebastian and Roegel, Denis and Vo{\ss}, Herbert},
  title		= {The {\LaTeX} {G}raphics {C}ompanion},
  publisher	= {{Addison-Wesley Publishing Company}},
  edition	= second,
  year		= {2007},
  address	= {Reading, Mass.}
}

@BOOK{tikz,
  author    = {Tantau, Till},
  title     = {Ti{\textit{k}}{Z} and {PGF}. {M}anual for version 1.18},
  publisher = {\texttt{http://sourceforge.net/projects/pgf}},
  year      = {2007}
}

@BOOK{tikz2,
  author    = {Tantau, Till},
  title     = {PGF and Ti{\textit{k}}{Z} -- Graphic systems for TeX},
  publisher = {\texttt{http://sourceforge.net/projects/pgf}},
  year      = {2007}
}

@book{fauskes1,
  author    = {Fauskes, Kjell Magne},
  title     = {PGF and Ti{\textit{k}}{Z} examples gallery},
  publisher = {\texttt{http://www.fauskes.net/pgftikzexamples/}},
  year      = {2007}
}

@book{fauskes2,
  author    = {Fauskes, Kjell Magne},
  title     = {PGF and Ti{\textit{k}}{Z} resources},
  publisher = {\texttt{http://www.fauskes.net/pgftikzexamples/resources/}},
  year      = {2007}
}

@book{matthes,
  author    = {Alain Matthes},
  title     = {Ti{\textit{k}}{Z}/PGF},
  publisher = {\texttt{http://www.altermundus.fr/pages/pdflatex/tikz.html}},
  year      = {2007}
}

@book{mertz,
  author    = {Mertz, Andrew and Slough, William},
  title     = {Graphics with PGF and T{\textit{k}}{Z}},
  publisher = {\texttt{http://www.tug.org/pracjourn/2007-1/mertz/}},
  journal   = {The Prac{\TeX} {J}ournal},
  year      = {2007}
}

