Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1976__26_4_a10, author = {Szmanda, Bla\.zej}, title = {Disconjugacy criteria for linear vector differential equations}, journal = {Mathematica slovaca}, pages = {351--360}, publisher = {mathdoc}, volume = {26}, number = {4}, year = {1976}, mrnumber = {0427746}, zbl = {0354.34015}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1976__26_4_a10/} }
Szmanda, Blażej. Disconjugacy criteria for linear vector differential equations. Mathematica slovaca, Tome 26 (1976) no. 4, pp. 351-360. http://geodesic.mathdoc.fr/item/MASLO_1976__26_4_a10/