TY  - JOUR
AU  - N. I. Brisch
TI  - On mixed problems for certain semihyperbolic equations
JO  - Differencialʹnye uravneniâ
PY  - 1970
SP  - 705
EP  - 720
VL  - 6
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1970_6_4_a13/
LA  - ru
ID  - DE_1970_6_4_a13
ER  -