Number of items: 1.

Centorrino, SamueleIdRef, Djemaï, ElodieIdRef, Hopfensitz, AstridIdRefORCIDORCID: https://orcid.org/0000-0002-6503-6114, Milinski, Manfred and Seabright, PaulIdRefORCIDORCID: https://orcid.org/0000-0003-3725-3098 (2015) A model of smiling as a costly signal of cooperation opportunities. Adaptive Human Behavior and Physiology, vol. 1. pp. 325-340.

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