TY  - JOUR
AU  - V. S. Ryzhii
TI  - The uniqueness of a solution of the Cauchy problem for second order equations
JO  - Differencialʹnye uravneniâ
PY  - 1972
SP  - 349
EP  - 361
VL  - 8
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1972_8_2_a15/
LA  - ru
ID  - DE_1972_8_2_a15
ER  -