TY  - JOUR
AU  - Valery Dryuma
TI  - On limit cycles of polynomial systems of the first-order ODE's
JO  - Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica
PY  - 2019
SP  - 113
EP  - 126
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/BASM_2019_2_a6/
LA  - en
ID  - BASM_2019_2_a6
ER  -