%0 Journal Article
%A R. M. Safina
%T Keldysh problem for mixed type equation with strong characteristic degeneration and singular coefficient
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 2017
%P 53-61
%N 8
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_2017_8_a4/
%G ru
%F IVM_2017_8_a4