Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMJ_2003__53_2_a19, author = {Palumb{\'\i}ny, Oleg}, title = {On oscillation criteria of fourth order linear differential equations}, journal = {Czechoslovak Mathematical Journal}, pages = {467--477}, publisher = {mathdoc}, volume = {53}, number = {2}, year = {2003}, mrnumber = {1983466}, zbl = {1036.34038}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMJ_2003__53_2_a19/} }
Palumbíny, Oleg. On oscillation criteria of fourth order linear differential equations. Czechoslovak Mathematical Journal, Tome 53 (2003) no. 2, pp. 467-477. http://geodesic.mathdoc.fr/item/CMJ_2003__53_2_a19/