@article{article7f343732,
title   = {Global phase portraits of quadratic polynomial differential systems with a semi-elemental triple node},
author = {Artés, Joan C and Rezende, Alex C and Oliveira, Regilene Delazari dos Santos},
year = {2013},
doi = {10.1142/S021812741350140X},
journal   = {International Journal of Bifurcation and Chaos}
}