Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1992__42_2_a5, author = {Do\v{s}l\'y, Ond\v{r}ej}, title = {The multiplicity criteria for zero points of second order differential equations}, journal = {Mathematica slovaca}, pages = {181--193}, publisher = {mathdoc}, volume = {42}, number = {2}, year = {1992}, mrnumber = {1170102}, zbl = {0754.34026}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1992__42_2_a5/} }
Došlý, Ondřej. The multiplicity criteria for zero points of second order differential equations. Mathematica slovaca, Tome 42 (1992) no. 2, pp. 181-193. http://geodesic.mathdoc.fr/item/MASLO_1992__42_2_a5/