@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/