TY  - JOUR
AU  - R. M. Safina
TI  - Keldysh problem for mixed type equation with strong characteristic degeneration and singular coefficient
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 2017
SP  - 53
EP  - 61
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_2017_8_a4/
LA  - ru
ID  - IVM_2017_8_a4
ER  -