Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1979__29_1_a9, author = {\v{S}olt\'es, Vincent}, title = {Oscillatory properties of solutions of a fourth-order nonlinear differential equation}, journal = {Mathematica slovaca}, pages = {73--82}, publisher = {mathdoc}, volume = {29}, number = {1}, year = {1979}, mrnumber = {561780}, zbl = {0407.34030}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1979__29_1_a9/} }
Šoltés, Vincent. Oscillatory properties of solutions of a fourth-order nonlinear differential equation. Mathematica slovaca, Tome 29 (1979) no. 1, pp. 73-82. http://geodesic.mathdoc.fr/item/MASLO_1979__29_1_a9/