TY  - JOUR
AU  - N. Yu. Kapustin
TI  - Solvability in the class $L_2$ of a problem with a boundary condition on a characteristic for a hyperbolic equation with order degeneration
JO  - Differencialʹnye uravneniâ
PY  - 1990
SP  - 66
EP  - 75
VL  - 26
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1990_26_1_a8/
LA  - ru
ID  - DE_1990_26_1_a8
ER  -