TY  - JOUR
AU  - R. Boukoucha
TI  - Explicit form of first integral and limit cycles for a class of planar Kolmogorov systems
JO  - Proceedings of the Yerevan State University. Physical and mathematical sciences
PY  - 2021
SP  - 1
EP  - 11
VL  - 55
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/UZERU_2021_55_1_a0/
LA  - en
ID  - UZERU_2021_55_1_a0
ER  -