%0 Journal Article
%A A. S. Kalashnikov
%T All-Union Conference on Partial Differential Equation dedicated to the 75th birthday of I.\,G.~Petrovskii
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1976
%V 31
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1976_31_5_a34/
%G ru
%F RM_1976_31_5_a34