@article{RLIN_2000_9_11_2_a1,
     author = {Mazzi, Luisa and Sabatini, Marco},
     title = {Commutators and linearizations of isochronous centers},
     journal = {Atti della Accademia nazionale dei Lincei. Rendiconti Lincei. Matematica e applicazioni},
     pages = {81--98},
     publisher = {mathdoc},
     volume = {Ser. 9, 11},
     number = {2},
     year = {2000},
     zbl = {0973.34020},
     mrnumber = {1747197},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RLIN_2000_9_11_2_a1/}
}