TY  - JOUR
AU  - E. L. Perchik
TI  - On a remark of E. Goursat and its applications
JO  - Differencialʹnye uravneniâ
PY  - 1994
SP  - 1561
EP  - 1565
VL  - 30
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1994_30_9_a8/
LA  - ru
ID  - DE_1994_30_9_a8
ER  -