Voir la notice de l'article provenant de la source Electronic Library of Mathematics
@article{EJDE_1999__1999__a111, author = {Christopher, Colin}, title = {Liouvillian first integrals of second order polynomial differential equations}, journal = {Electronic Journal of Differential Equations}, publisher = {mathdoc}, volume = {1999}, year = {1999}, language = {en}, url = {http://geodesic.mathdoc.fr/item/EJDE_1999__1999__a111/} }
Christopher, Colin. Liouvillian first integrals of second order polynomial differential equations. Electronic Journal of Differential Equations, Tome 1999 (1999). http://geodesic.mathdoc.fr/item/EJDE_1999__1999__a111/