%0 Journal Article
%A V. I. Paškovskii
%T Connected operators and boundary value problems of hyperbolic and degenerate hyperbolic partial differential equations
%J Differencialʹnye uravneniâ
%D 1975
%P 127-136
%V 11
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1975_11_1_a14/
%G ru
%F DE_1975_11_1_a14