1. Termination of seasonal breeding in the photoperiodic weaver bird
2. and (1985) Control of seasonal reproduction in the birds of tropics: the weaver bird. In: The endocrine system and the environment. and eds. JSSP Tokyo/Springer Verlag, Berlin, New York, pp. 149-156.
3. (1959) Photoperiodic related control of annual gonadal cycles in birds. In: Photoperiodism and related phenomenon in plants and animals. ed. Am. Assoc., Adv. Sci., Washington, D.C., pp. 716-750.
4. Predictive functions in the control of annual cycles