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2. Fisher's theory of the sex ratio applied to the social hymenoptera;Benford;J. Theor. Biol.,1978
3. The Theory of Sex Allocation;Charnov,1982
4. Selection on sex ratio and the evolution of sex determination;Eshel;Heredity,1975
5. On evolutionary genetic stability of the sex ratio;Eshel;Theor. Pop. Biol.,1982