@article{article8d8f8366,
title   = {On the birth and death of algebraic limit cycles in quadratic differential systems},
author = {Llibre, Jaume and Oliveira, Regilene Delazari dos Santos and Zhao, Yulin},
year = {2021},
doi = {10.1017/S0956792520000145},
journal   = {European Journal of Applied Mathematics}
}