%0 Journal Article
%A N. G. Sorokina
%T Boundary value problems for a three-dimensional equation of mixed type of the second kind
%J Differencialʹnye uravneniâ
%D 1982
%P 173-176
%V 18
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1982_18_1_a20/
%G ru
%F DE_1982_18_1_a20