TY  - JOUR
AU  - L. M. Berkovich
TI  - Transformations of ordinary nonlinear differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1971
SP  - 353
EP  - 356
VL  - 7
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1971_7_2_a15/
LA  - ru
ID  - DE_1971_7_2_a15
ER  -