TY  - JOUR
AU  - N. J. Yurchuk
TI  - A partially characteristic mixed problem with Goursat initial conditions for linear equations with two-dimensional time
JO  - Differencialʹnye uravneniâ
PY  - 1969
SP  - 898
EP  - 910
VL  - 5
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1969_5_5_a11/
LA  - ru
ID  - DE_1969_5_5_a11
ER  -