@article{EXMA_2002__11_4_55456,
     author = {Gra\c{c}a, M\'ario M.},
     title = {On the computation of nonhyperbolic fixed points.},
     journal = {Experimental mathematics},
     pages = {477--485},
     publisher = {mathdoc},
     volume = {11},
     number = {4},
     year = {2002},
     zbl = {1162.37316},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMA_2002__11_4_55456/}
}