\input zb-basic
\input zb-ioport
\iteman{io-port 50138413}
\itemau{Han, Maoan; Jiang, Jiao; Zhu, Huaiping}
\itemti{Limit cycle bifurcations in near-Hamiltonian systems by perturbing a nilpotent center}
\itemso{I. J. Bifurcation and Chaos 18, No. 10, 3013-3027 (2008).}
\itemcc{}
\itemut{}
\itemli{doi:10.1142/S0218127408022226}
\end