%0 Journal Article
%A V. I. Paškovskii
%T Connected partial differential operators and boundary value problems
%J Differencialʹnye uravneniâ
%D 1973
%P 757-760
%V 9
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1973_9_4_a23/
%G ru
%F DE_1973_9_4_a23