1. Two-dice horse race;Foster;Teaching Statistics,2016
2. Loader , C. 2000 Fast and Accurate Computation of Binomial Probabilities https://lists gnu.org/archive/html/octave-maintainers/2011-09/pdfK0uKOST642.pdf
3. Maxima CAS 2017 http://maxima.sourceforge.net/maxima.sourceforge.net/
4. Petkovček , M. Wilf , H. S. Zeilberger , D. 1996 A=B. Wellesley, Mass.: A.K.Peters. Also available under https://www.math.upenn.edu/~wilf/AeqB.html