TY  - JOUR
AU  - R. N. Khubiev
TI  - A boundary value problem for a parabolic-hyperbolic equation with an unknown line of type change
JO  - Differencialʹnye uravneniâ
PY  - 1979
SP  - 373
EP  - 375
VL  - 15
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1979_15_2_a27/
LA  - ru
ID  - DE_1979_15_2_a27
ER  -