TY  - JOUR
AU  - Zhengxin Zhou
TI  - On the periodic solutions of the rational differential equations
JO  - Problemy fiziki, matematiki i tehniki
PY  - 2014
SP  - 81
EP  - 84
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PFMT_2014_1_a13/
LA  - en
ID  - PFMT_2014_1_a13
ER  -