@article{01697701, title = {Inequalities and eigenvalues of Sturm-Liouville problems near a singular boundary.}, journal = {Journal of Inequalities and Applications [electronic only]}, volume = {6}, year = {2001}, pages = {405-413}, doi = {10.1155/S1025583401000248}, zbl = {1006.34024}, language = {en}, url = {http://dml.mathdoc.fr/item/01697701} }
Everitt, W.N.; Marletta, M.; Zettl, A. Inequalities and eigenvalues of Sturm-Liouville problems near a singular boundary.. Journal of Inequalities and Applications [electronic only], Tome 6 (2001) pp. 405-413. doi : 10.1155/S1025583401000248. http://gdmltest.u-ga.fr/item/01697701/