1. Steroidogenic shift by cultured ovarian follicles ofRana dybowskii;Ahn;J. Exp. Zool.,1993
2. Seasonal regulation of reproduction in mammals;Bronson,1994
3. Regulation of ovarian steroidogenesis;Chieffi,1987
4. Seasonal cycles in testicular activity in the frog,Rana perezi;Delgado;Gen. Comp. Endocrinol.,1989
5. Radioimmunoassay of testosterone, 17β-estradiol and oestrone in the male and female plasma ofRana esculenta;D'Istria;Steroids Lipids Res.,1974