TY  - JOUR
AU  - Yu. M. Berezanskii
TI  - Energy inequalities for some classes of equations of mixed type
JO  - Doklady Akademii Nauk
PY  - 1960
SP  - 9
EP  - 12
VL  - 132
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1960_132_1_a0/
LA  - ru
ID  - DAN_1960_132_1_a0
ER  -