1. Ahuja, M. M. S., and Sharma, N. J. (1971). Adrenocortical function in relation to seasonal variations in normal Indians.Indian J. Med. 59: 1893?1905.
2. Assenmacher, I. (1974). External and internal components of the mechanism controlling reproductive cycles in drakes. In Pengelley, E. T. (ed.),Circannual Biologic Rhythms Academic Press, New York.
3. Benoit, J., and Assenmacher, I. (eds.) (1970).La photorégulation de la reproduction chez les oiseaux et les mammifères, Coll Int. CNRS, Montpellier, 1967, CNRS (Publ.), Paris, No. 172.
4. Benoit, J., Assenmacher, I., and Brard, E. (1956). Apparition et maintien de cycles sexuels non saisonniers chez le Canard domestique placé pendant plus de trois ans à l'obscurité totale.J. Physiol. (Paris) 48: 388?391.
5. Ceresa, F., Angeli, A., Boccuzzi, G., and Molino, G. (1969). Once-a-day neutrally stimulated and basal ACTH secretion phases in man and their response to corticoid inhibition.J. Clin. Endocrinol. Metab. 29: 1704?1082.