Sibly, Richard M Evolution of discrimination in populations at equilibrium between selfishness and altruism. [electronic resource] - Journal of theoretical biology Nov 2012 - 162-71 p. digital Publication Type: Journal Article ISSN: 1095-8541 Standard No.: 10.1016/j.jtbi.2012.08.014 doi Subjects--Topical Terms: AllelesAltruismBiological EvolutionFamilyGene Frequency--geneticsGenetic FitnessGenetic Loci--geneticsGenetics, PopulationHelping BehaviorHumansModels, BiologicalModels, GeneticPhenotype