1. Altruistic behaviour: the fallacy of kin deployment;Altmann;Anim. Behav.,1979
2. Evolutionary aspects of parental behavior: distraction behavior of the alpine accentor;Barash;Wils. Bull.,1975
3. Die Gelegegrößc des Trauerschnäppers (Ficedula hypoleuca) in Beziehung zu Ort, Zeit, Biotop und Alter;Berndt;Vogclwelt,1967
4. Vigilance and group size in ostriches;Bertram;Anim. Behav.,1980
5. Fertility of eggs produced on territories of vasectomized redwinged blackbirds;Bray;Wils. Bull.,1975