%0 Journal Article
%A S. M. Shugrin
%T Strong and weak extension of differential operators
%J Differencialʹnye uravneniâ
%D 1975
%P 2067-2082
%V 11
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1975_11_11_a15/
%G ru
%F DE_1975_11_11_a15