Yuhai Wu, Maoan Han. On the Number and Distributions of Limit cycles of a Planar quartic Vector Field. I. J. Bifurcation and Chaos, 23(4), 2013. [doi]
@article{WuH13-12,
title = {On the Number and Distributions of Limit cycles of a Planar quartic Vector Field},
author = {Yuhai Wu and Maoan Han},
year = {2013},
doi = {10.1142/S0218127413500697},
url = {http://dx.doi.org/10.1142/S0218127413500697},
researchr = {https://researchr.org/publication/WuH13-12},
cites = {0},
citedby = {0},
journal = {I. J. Bifurcation and Chaos},
volume = {23},
number = {4},
}