@article{PM_1997_1997_1_a39,
     author = {Chavarriga, Javier and Gin\'e, Jaume},
     title = {Integrabilidad de un centro lineal perturbado por un polinomio homog\'eneo de quinto grado.},
     journal = {Publicacions matem\`atiques},
     pages = {335-356},
     publisher = {mathdoc},
     volume = {41},
     number = {2},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PM_1997_1997_1_a39/}
}