TY  - JOUR
AU  - N. N. Molchanov
TI  - The use of the theory of continuous groups of transformations in investigating the solutions of ordinary 

JO  - Doklady Akademii Nauk
PY  - 1957
SP  - 998
EP  - 1001
VL  - 112
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1957_112_6_a4/
LA  - ru
ID  - DAN_1957_112_6_a4
ER  -