Birkhoff–von Neumann polytope

expositions

• http://www.math.binghamton.edu/dennis/Birkhoff/

computational resource

• https://drive.google.com/file/d/0B8XXo8Tve1cxRDRnNGlwcGZLN0E/view
• http://www.math.binghamton.edu/dennis/Birkhoff/polynomials.html

articles

• Christos A. Athanasiadis, Ehrhart polynomials, simplicial polytopes, magic squares and a conjecture of Stanley, arXiv:math/0312031 [math.CO], December 01 2003, http://arxiv.org/abs/math/0312031