@article{107248, author = {Erich M\"uller-Pfeiffer}, title = {Comparison theorems for Sturm-Liouville equations}, journal = {Archivum Mathematicum}, volume = {022}, year = {1986}, pages = {65-73}, zbl = {0632.34029}, mrnumber = {868121}, language = {en}, url = {http://dml.mathdoc.fr/item/107248} }
Müller-Pfeiffer, Erich. Comparison theorems for Sturm-Liouville equations. Archivum Mathematicum, Tome 022 (1986) pp. 65-73. http://gdmltest.u-ga.fr/item/107248/
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