Volterra V.Lessons sur la theorie mathematique de la lutte pour la vie Gautier-Villars, Paris, 1931.
Volterra V.Variations and fluctuations of the number of individuals in animal species living together Rapp. P.– V. Reun. Cons. Int. Explor. Mer. – 1928. 3. – Pp.3 – 51.
Lotka A. J.Fluctuations in the abundance of species considered mathematically (with comment by V. Volterra) Nature, 1927, v. 119, №2983, p. 128.