Brekke, Patricia (2013). "Evolution of extreme-mating behaviour: Patterns of extrapair paternity in a species with forced extrapair copulation". Behavioral Ecology and Sociobiology. 67 (6): 963–972. doi:10.1007/s00265-013-1522-9. S2CID17937763.
Brekke, Patricia (2013). "Evolution of extreme-mating behaviour: Patterns of extrapair paternity in a species with forced extrapair copulation". Behavioral Ecology and Sociobiology. 67 (6): 963–972. doi:10.1007/s00265-013-1522-9. S2CID17937763.