Altenberg introduces the transformation matrix [Ti,j,k], which gives the probability of a genotype jk producing a gamete of type i. This matrix can encompass various genetic distortions such as recombination, mutation, gene conversions, etc. Hence, the proof by Altenberg goes much further than the original constraints of the Feldman and Karlin conjecture and also beyond the scope of our present game theoretic formulation.— The Anh Han, Arne Traulsen, and Chaitanya S. Gokhale. 2012. On equilibrium properties of evolutionary multi-player games with random payoff matrices. Theoretical Population Biology 81: 264-272