TY  - JOUR
AU  - V. V. Lychagin
TI  - On the singularities of solutions of differential equations
JO  - Doklady Akademii Nauk
PY  - 1980
SP  - 794
EP  - 799
VL  - 251
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1980_251_4_a5/
LA  - ru
ID  - DAN_1980_251_4_a5
ER  -