TY  - JOUR
AU  - I. I. Pleshkan
AU  - K. S. Sibirskii
TI  - On the problem of the center for systems with discontinuous right-hand sides
JO  - Differencialʹnye uravneniâ
PY  - 1973
SP  - 1817
EP  - 1825
VL  - 9
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1973_9_10_a8/
LA  - ru
ID  - DE_1973_9_10_a8
ER  -