%0 Journal Article %T Attractivity conditions for a perturbated Lotka Volterra model %A F. Capone %A S. Rionero %J Le Matematiche %D 1991 %I University of Catania %X A perturbed non-autonomous Lotka Volterra model with a diffusive term is considered. Conditions assuring non linear stability of a biological critical point are obtained also in the case in which the diffusivity coefficient is time periodic. %U http://www.dmi.unict.it/ojs/index.php/lematematiche/article/view/599