Further Reduction of Normal Forms and Unique Normal Forms of Smooth Maps.

Duo Wang Min Zheng Jianping Peng Further Reduction of Normal Forms and Unique Normal Forms of Smooth Maps. 803-825 2008 18 I. J. Bifurcation and Chaos 3 http://dx.doi.org/10.1142/S0218127408020665 db/journals/ijbc/ijbc18.html#WangZP08