1. Volterra, V.,Lecons sur la Theorie Mathematique de la Lutte pour la Vie, Gauthier Villars, Paris, France, 1931.
2. Volterra, E.,Vibrations of Elastic Systems Having Hereditary Characteristics, Journal of Applied Mechanics, Vol. 14, pp. 363?371, 1950.
3. Miller, R. K.,On Volterra's Population Equation, SIAM Journal on Applied Mathematics, Vol. 14, pp. 446?452, 1966.
4. Bownds, J. M., andCushing, J. M.,On the Behavior of Predator-Prey Equations with Hereditary Terms, Mathematical Biosciences, Vol. 26, pp. 47?54, 1975.
5. Noble, B.,The Numerical Solution of Nonlinear Integral Equations and Related Topics, Nonlinear Integral Equations, Edited by P. M. Anselone, University of Wisconsin Press, Madison, Wisconsin, 1964.