TY  - JOUR
AU  - K. B. Sabitov
TI  - On the theory of equations of mixed parabolic-hyperbolic type with a spectral parameter
JO  - Differencialʹnye uravneniâ
PY  - 1989
SP  - 117
EP  - 126
VL  - 25
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1989_25_1_a13/
LA  - ru
ID  - DE_1989_25_1_a13
ER  -