@article{CRMATH_2006__343_10_657_0,
     author = {Duo Wang and Min Zheng and Jianping Peng},
     title = {Further reduction of normal forms of formal maps},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {657--660},
     publisher = {Elsevier},
     volume = {343},
     number = {10},
     year = {2006},
     doi = {10.1016/j.crma.2006.10.005},
     language = {en},
}