@misc{miscfe12750e,
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 = {2019},
publisher = {ICMC-USP}
}