TY  - JOUR
AU  - M. E. Lerner
TI  - The extremal property of the solutions of a certain class of hyperbolic equations
JO  - Doklady Akademii Nauk
PY  - 1969
SP  - 1281
EP  - 1283
VL  - 184
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1969_184_6_a5/
LA  - ru
ID  - DAN_1969_184_6_a5
ER  -