TY  - JOUR
AU  - A. M. Nakhushev
TI  - Methods of stating well-posed problems for second order linear hyperbolic equations on the plane
JO  - Differencialʹnye uravneniâ
PY  - 1970
SP  - 192
EP  - 195
VL  - 6
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1970_6_1_a19/
LA  - ru
ID  - DE_1970_6_1_a19
ER  -