1. Ader, R., and Grota, L. J. Rhythmicity in the maternal behaviour of Rattus norvegicus. Animal Behavior, 1970, 18, 144–150.
2. Adler, K. Extraoptic phase shifting of circadian locomotor rhythm in salamanders. Science, 1969, 164, 1290–1292.
3. Adler, K. Pineal end organ: Role in extraoptic entrainment of circadian locomotor rhythms in frogs. In M. Menaker (Ed.), Biochronometry. Washington, D.C.: U.S. National Academy of Sciences, 1971, pp. 342–350.
4. Adler, K. Extraocular photoreception in amphibians. Photochemistry and Photobiology, 1976, 23, 275–298.
5. Alleva, J. J., Waleski, M. V., and Alleva, F. R. A biological clock controlling the estrous cycle of the hamster. Endocrinology, 1971, 88, 1368–1379.