М. Nowak and R. Highfield, SuperCooperators: Altruism, Evolution, and Why We Need Each Other to Succeed (New York: Simon & Schuster, 2012). К сноске: М. Nowak and K. Sigmund, “A Strategy of Win-Stay, Lose-Shift that Outperforms Tit-for-Tat in the Prisoner’s Dilemma Game,” Nat 364 (1993): 56.
