TY  - JOUR
AU  - I. P. Martynov
TI  - A differential equation with a moving singular line
JO  - Differencialʹnye uravneniâ
PY  - 1977
SP  - 1879
EP  - 1881
VL  - 13
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1977_13_10_a21/
LA  - ru
ID  - DE_1977_13_10_a21
ER  -