%0 Journal Article
%A O. M. Teut
%T A~problem with boundary conditions on two characteristics for a~certain system of mixed type.~I
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1973
%P 89-100
%N 8
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1973_8_a11/
%G ru
%F IVM_1973_8_a11