%0 Journal Article
%A M. M. Zainulabidov
%T The Bitsadze--Samarski{\v\i} problem for equations of mixed type
%J Differencialʹnye uravneniâ
%D 1986
%P 54-59
%V 22
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1986_22_1_a6/
%G ru
%F DE_1986_22_1_a6