@article{articlec83e8c32,
title   = {Structurally unstable quadratic vector fields of codimension two: families possessing either a cusp point or two finite saddle-nodes},
author = {Artés, Joan C and Oliveira, Regilene Delazari dos Santos and Rezende, Alex Carlucci},
year = {2021},
doi = {10.1007/s10884-020-09871-2},
journal   = {Journal of Dynamics and Differential Equations}
}