TY  - JOUR
AU  - A. G. Aslanyan
AU  - V. I. Burenkov
TI  - Refinement of a theorem of V. V. Morozov
JO  - Differencialʹnye uravneniâ
PY  - 1967
SP  - 687
EP  - 691
VL  - 3
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1967_3_4_a9/
LA  - ru
ID  - DE_1967_3_4_a9
ER  -