1. Timofeev-Ressovsky, N.W., Zur Analyse des Polymorphismus bei Adalia bipunctata,
Biol. Zentralbl., 1940, vol. 60, nos. 3–4, p. 130.
2. Timofeev-Resovsky, N.V. and Svirezhev Yu.M., On adaptive polymorphism in populations of Adalia bipunctata, Probl. Kibernetiki, 1965, vol. 16, pp. 137–146.
3. Gershenson, S.M., Evolutionary studies on the distribution and dynamics of melanism in the hamster (Cricetus cricetus). I., II, Genetics, 1945, vol. 30, pp. 207–252.
4. Kettlewell, H.B.D., Selection experiments on industrial melanism in the Lepidoptera, Heredity, 1955, vol. 9, pp. 323–342.
5. Sheppard, F.M., Estestvennyi otbor i nasledstvennost' (Natural Selection and Heredity), Moscow: Prosve-shchenie, 1970.