@article{article6be42950,
title   = {Geometric analysis of quadratic differential systems with invariant ellipses},
author = {Mota, Marcos Coutinho and Rezende, Alex Carlucci and Schlomiuk, Dana and Vulpe, Nicolae},
year = {2022},
doi = {10.12775/TMNA.2021.063},
journal   = {Topological Methods in Nonlinear Analysis}
}