Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{ARM_1982__18_2_a5, author = {\v{S}im\v{s}a, Jarom{\'\i}r}, title = {The second order differential equation with an oscillatory coefficient}, journal = {Archivum mathematicum}, pages = {95--100}, publisher = {mathdoc}, volume = {18}, number = {2}, year = {1982}, mrnumber = {683351}, zbl = {0498.34043}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_1982__18_2_a5/} }
Šimša, Jaromír. The second order differential equation with an oscillatory coefficient. Archivum mathematicum, Tome 18 (1982) no. 2, pp. 95-100. http://geodesic.mathdoc.fr/item/ARM_1982__18_2_a5/