[1] Arseneau, Donald: Generating random numbers in TeX. 1995. Available on ctan.org in macros/generic/misc/random.tex.
[3] Goossens, Michel, Mittelbach, Frank, Roegel, Denis, Voß, Herbert: The LaTeX Graphics Companion. Addison-Wesley, 2nd edition, 2008. ISBN 0-321-50892-0.
[4] Knuth, Donald E.: The TeXbook. Addison-Wesley, 1986. ISBN 0-201-13448-0.
[8] Wilson, Peter R.: The sudoku bundle for displaying, solving and generating Sudoku puzzles. 2006. Available on ctan.org in macros/latex/contrib/sudokubundle/.