@STRING{tugboat = {TUGboat} }
@STRING{dtk     = {{D}ie {\TeX}nische {K}om{\"o}die} }

@online{barcode,
 author = {Terry Burton},
 title = {Barcode Writer in Pure PostScript},
 url = {https://github.com/bwipp/postscriptbarcode/wiki},
 urldate = {2017-04-18}
}

@Book{companion,
 author        = {Michel Goosens and Frank Mittelbach and Sebastian Rahtz and Dennis Roegel and Herbert Vo\ss},
 title         = {The {\LaTeX} {G}raphics {C}ompanion},
 publisher     = {{Addison-Wesley Publishing Company}},
 edition       = {2},
 year          = {2007},
 address       = {Boston, Mass.}
}

@Article{girou:01:,
 author        = {Denis Girou},
 title         = {Pr\'esentation de {PST}ricks},
 journal       = {Cahier {GUT}enberg},
 year          = 1994,
 volume        = {16},
 month         = apr,
 pages         = {21-70}
}

@Article{girou:02:,
 author        = {{Timothy Van} Zandt and Denis Girou},
 title         = {Inside {PST}ricks},
 journal       = tugboat,
 year          = 1994,
 volume        = {15},
 month         = sep,
 pages         = {239-246}
}

@Book{PostScript,
 Author         = {Kollock, Nikolai G.},
 Title          = {Post{S}cript richtig eingesetzt: vom {K}onzept zum
                  praktischen {E}insatz},
 Publisher      = {IWT},
 Address        = {Vaterstetten},
 year           = 1989,
}

@ctan{multido,
 Title          = {\texttt{multido.tex} - a loop macro, that supports fixed-point addition},
 Author         = {Timothy Van Zandt},
 url        = {/macros/generic/multido.tex},
 Note           = {},
 year           = 1997
}

@Book{PSTricks2,
 author        = {Herbert Vo\ss{}},
 title         = {\texttt{PSTricks} -- {G}rafik f\"ur \TeX{} und \LaTeX},
 edition       = {7},
 publisher     = {DANTE -- Lehmanns},
 year          = {2016},
 location      = {Heidelberg and Berlin}
}

@Book{PSTricksE,
 author        = {Herbert Vo\ss{}},
 title         = {\texttt{PSTricks} -- {G}raphics and {P}ost{S}cript for \LaTeX},
 edition       = {1},
 publisher     = {UIT},
 year          = {2011},
 location      = {Cambridge -- UK}
}

@Book{LTXquick,
 author        = {Herbert Vo\ss{}},
 title         = {{\LaTeX} quick reference},
 edition       = {1},
 publisher     = {UIT},
 year          = {2012},
 location      = {Cambridge -- UK}
}

@Book{presentations,
 author        = {Herbert Vo\ss},
 title         = {Presentations with \LaTeX},
 edition       = {2},
 publisher     = {DANTE -- Lehmanns Media},
 year          = {2017},
 location      = {Heidelberg and Berlin}
}


@Book{tbt,
 author        = {Victor Eijkhout},
 title         = {\TeX\ by Topic -- {A} \TeX{}nician Reference},
 edition       = {1},
 publisher     = {DANTE -- Lehmanns Media},
 year          = {2014},
 location      = {Heidelberg and Berlin}
}

@online{miwi,
 Title          = {References for \TeX{} and Friends},
 Author         = {Michael Wiedmann},
 url        = {http://www.miwie.org/tex-refs/},
urldate = {2017-08-06},
 year           = 2012,
 version = {0.4.1},
}


@ctan{pst-tools,
 author        = {Herbert Voß},
 title         = {\texttt{pst-tools} -- Helper functions},
 publisher     = {CTAN},
 year          = {2012},
 url   = {/graphics/pstricks/contrib/pst-tools}
}