1. Anokhin, P.K., Biologiya i fiziologiya uslovnogo refleksa (Biology and Physiology of a Conditioned Reflex), Moscow: Meditsina, 1968.
2. Bliznyuk, Ya.I. and Dzhincharadze, K.A., Development of Locomotion Coordination of the Bottlenose Dolphin in Early Ontogeny, in Morskie mlekopitayushchie: Tez. dokl. YP Vsesoyuz. soveshch. Simferopol’, 20–23 sentyabrya 1978 g (Abstracts of Papers, VII All-Union Conf. on Marine Mammals, Simferopol, September 20–23, 1978), Moscow, 1978, pp. 41–42.
3. Bondarchuk, L.S., Matisheva, S.K., and Skibnevskii, R.N., Behavioral Development of Calves of the Black-Sea Bottlenose Dolphin (Tursiors trunsatus), Zool. Zh., 1976, vol. 55, no. 2, pp. 276–281.
4. Chechina, O.N., Behavioral Patterns in Mother-Infant Interaction in Calves of the Black-Sea Bottlenose Dolphin (Tursiors trunsatus rontisus Varabassh, 1940) in Oceanarium, in Morskie mlekopitayushchie Golarktiki: Sb. Nauch. Tr. (Marine Mammals of the Holarctic Region: Collected Articles), Moscow, 2004, pp. 579–581.
5. Eliseeva, E.A. and Obukhov, D.K., Behavior of the Bottlenose Dolphin (Tursiors trunsatus Montagu, 1821) Calves in Early Juvenile Period (First 0.5 Year of Life) Housed in a Dolphinarium, Morskie Mlekopitayushchie Golarktiki: Sb. Nauch. Tr. (Marine Mammals of the Holarctic Region: Collected Articles), 2006, pp. 185–188.