1. Alexander RD, Noonan KM, Crespi BJ. 1991.The evolution of eusociality. Pages 3-44in Sherman PW, Jarvis JUM, AlexanderRD, eds. The Biology of the Naked MoleRat. Princeton (NJ): Princeton UniversityPress.AlexanderThe evolution of eusociality3The Biology of the Naked Mole Rat1991
2. Aoki S. 1987. Evolution of sterile soldiers inaphids. Pages 53-65 in Ito Y, Brown JL,Kikkawa J, eds. Animal Societies: Theo-ries and Facts. Tokyo: Japan Science Soci-ety Press.AokiEvolution of sterile soldiers in aphids53Animal Societies: Theories and Facts1987
3. Adaptive colony sex ratios in primitively eusocial bees
4. Colony-level sex ratio selection in the eusocial Hymenoptera