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L.A. Dugatkin and H.K. Reeve, Behavioral Ecology and Levels of Selection: Dissolving the Group Selection Controversy.
T.C.M. Bakker, Genetic Correlations and the Control of Behavior, Exemplified by Aggressiveness in Sticklebacks.
J. Stamps, Territorial Behavior: Testing the Assumptions.
B. Kramer, Communication Behavior and Sensory Mechanisms in Weakly Electric Fishes.