@article{05375613,
title = {The number of limit cycles of a quintic Hamiltonian system with perturbation.},
journal = {Balkan Journal of Geometry and its Applications (BJGA)},
volume = {13},
year = {2008},
pages = {1-11},
zbl = {1163.34021},
language = {en},
url = {http://dml.mathdoc.fr/item/05375613}
}
Atabaigi, Ali; Nyamoradi, Nemat; Zangeneh, Hamid R.Z. The number of limit cycles of a quintic Hamiltonian system with perturbation.. Balkan Journal of Geometry and its Applications (BJGA), Tome 13 (2008) pp. 1-11. http://gdmltest.u-ga.fr/item/05375613/