%0 Journal Article
%A I. G. Petrovskii
%T Some complements to the articles of O.~Perron and L.\,A.~Ljusternik on the Dirichlet problem
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1970
%V 25
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1970_25_4_a9/
%G ru
%F RM_1970_25_4_a9