Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{ARM_1972__8_3_a0, author = {Bartu\v{s}ek, Miroslav}, title = {Connection between asymptotic properties and zeros of solutions of $y''=q(t)y$}, journal = {Archivum mathematicum}, pages = {113--124}, publisher = {mathdoc}, volume = {08}, number = {3}, year = {1972}, mrnumber = {0340715}, zbl = {0282.34023}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_1972__8_3_a0/} }
Bartušek, Miroslav. Connection between asymptotic properties and zeros of solutions of $y''=q(t)y$. Archivum mathematicum, Tome 08 (1972) no. 3, pp. 113-124. http://geodesic.mathdoc.fr/item/ARM_1972__8_3_a0/