TY  - JOUR
AU  - Ya. V. Bykov
AU  - N. I. Fomina
TI  - The singular solutions of nonlinear differential equations.~I
JO  - Differencialʹnye uravneniâ
PY  - 1973
SP  - 983
EP  - 994
VL  - 9
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1973_9_6_a0/
LA  - ru
ID  - DE_1973_9_6_a0
ER  -