https://epjb.epj.org/articles/epjb/abs/2021/11/10051_2021_Article_239/10051_2021_Article_239.html
Cooperation evolves by the payoff-difference-based probabilistic reward | The European Physical...
The European Physical Journal B (EPJ B) publishes regular articles and colloquia in Condensed Matter and Complex Systems
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https://www.squakenet.com/game/cadaver-the-payoff/
Cadaver: the Payoff (1991) - PC Game
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