TY  - JOUR
AU  - E. D. Zhitelzeif
TI  - Limit cycles of a system of relay type with polynomial right-hand side
JO  - Differencialʹnye uravneniâ
PY  - 1977
SP  - 753
EP  - 755
VL  - 13
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1977_13_4_a22/
LA  - ru
ID  - DE_1977_13_4_a22
ER  -