TY  - JOUR
AU  - V. N. Gol'dberg
TI  - The question whether nonlinear mixed problems for almost linear hyperbolic systems in the plane are well posed
JO  - Differencialʹnye uravneniâ
PY  - 1973
SP  - 1831
EP  - 1844
VL  - 9
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1973_9_10_a10/
LA  - ru
ID  - DE_1973_9_10_a10
ER  -