@article{01550750, title = {A methodology for the numerical computation of normal forms, centre manifolds and first integrals of Hamiltonian systems.}, journal = {Experimental Mathematics}, volume = {8}, year = {1999}, pages = {155-195}, doi = {10.1080/10586458.1999.10504397}, zbl = {0983.37107}, language = {en}, url = {http://dml.mathdoc.fr/item/01550750} }
Jorba, Àngel. A methodology for the numerical computation of normal forms, centre manifolds and first integrals of Hamiltonian systems.. Experimental Mathematics, Tome 8 (1999) pp. 155-195. doi : 10.1080/10586458.1999.10504397. http://gdmltest.u-ga.fr/item/01550750/