@MISC{xkeyval,
  author =       {Hendri Adriaens},
  title =        {xkeyval package},
  howpublished = {\url{CTAN:/macros/latex/contrib/xkeyval}},
  year =         {2004},
}


@MANUAL{pstricks,
  TITLE =        {PSTricks - \texttt{PSTricks} macros for generic {\TeX}},
  author =       {{Timothy Van} Zandt},
  year =         {1993},
  note =         {\url{http://www.tug.org/application/PSTricks}},
}


@MANUAL{pstricks-add,
  TITLE =        {\texttt{pstricks-add}: Additionals Macros for pstricks},
  author =       {Dominique Rodriguez and Herbert Vo\ss},
  year =         {2008},
  note =         {\url{CTAN:/graphics/pstricks/contrib/pstricks-add}},
}


@MANUAL{pst-xkey,
  TITLE =        {pst-xkey package},
  author =       {Hendri Adriaens},
  year =         {2004},
  note =         {\url{CTAN:/macros/latex/contrib/xkeyval/run/pst-xkey}},
}


@MANUAL{pst-node,
  TITLE =        {pst-node package},
  author =       {{Timothy Van} Zandt},
  year =         {1999},
  note =         {\url{CTAN:/graphics/pstricks/base/pst-node}},
}


@MANUAL{pst-plot,
  TITLE =        {\texttt{pst-plot}: Plotting two dimensional functions and data},
  author =       {{Timothy Van} Zandt},
  year =         {1999},
  note =         {\url{CTAN:graphics/pstricks/base/pst-plot}},
}


@BOOK{Rotman:00,
  AUTHOR =       {J. J. Rotman},
  TITLE =        {A First Course in Abstract Algebra},
  PUBLISHER =    {Prentice Hall},
  YEAR =         {2000},
  edition =      {2nd},
  address =      {NJ},
}