%0 Journal Article %A B. N. Biyarov %T On Volterra relatively compact perturbations of the Laplace operator %J Eurasian mathematical journal %D 2014 %P 135-140 %V 5 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/EMJ_2014_5_1_a5/ %G en %F EMJ_2014_5_1_a5