TY  - JOUR
AU  - L. M. Nevostruev
TI  - Darboux problems for hyperbolic equations with degeneration of type and order
JO  - Differencialʹnye uravneniâ
PY  - 1987
SP  - 1780
EP  - 1786
VL  - 23
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1987_23_10_a14/
LA  - ru
ID  - DE_1987_23_10_a14
ER  -