Pei Yu, Maoan Han. Ten limit cycles around a center-type singular point in a 3-d quadratic system with quadratic perturbation. Appl. Math. Lett., 44:17-20, 2015. [doi]
@article{YuH15,
title = {Ten limit cycles around a center-type singular point in a 3-d quadratic system with quadratic perturbation},
author = {Pei Yu and Maoan Han},
year = {2015},
doi = {10.1016/j.aml.2014.12.010},
url = {http://dx.doi.org/10.1016/j.aml.2014.12.010},
researchr = {https://researchr.org/publication/YuH15},
cites = {0},
citedby = {0},
journal = {Appl. Math. Lett.},
volume = {44},
pages = {17-20},
}