@article{articlec7369fbc,
title   = {Phase portraits for some symmetric Riccati cubic polynomial differential equations},
author = {Llibre, Jaume and Oliveira, Regilene Delazari dos Santos and Valls, Claudia},
year = {2018},
doi = {10.1016/j.topol.2017.11.023},
journal   = {Topology and its Applications}
}