1. Sexual and maternal behavior;Alexander,1974
2. Sociosexual behavior in the domestic pony;Asa,1980
3. Asa, C. S.: Reproduction in carnivores and ungulates. In Crews, D. (ed.): The psychobiology of reproductive behavior: An evolutionary perspective. Boston, Prentice Hall (in press).
4. Sociosexual behavior and the ovulatory cycle of ponies (Equus caballus) observed in harem groups;Asa;Horm. Behav.,1979
5. Sexual behavior in ovariectomized and seasonally anovulatory mares;Asa;Horm. Behav.,1980