@article{01623483, title = {A classical approach to eigenvalue problems associated with a pair of mixed regular Sturm-Liouville equations. I.}, journal = {Journal of Applied Mathematics and Stochastic Analysis}, volume = {13}, year = {2000}, pages = {303-312}, doi = {10.1155/S1048953300000277}, zbl = {0977.34022}, language = {en}, url = {http://dml.mathdoc.fr/item/01623483} }
Venkatesulu, M.; Baruah, Pallav Kumar. A classical approach to eigenvalue problems associated with a pair of mixed regular Sturm-Liouville equations. I.. Journal of Applied Mathematics and Stochastic Analysis, Tome 13 (2000) pp. 303-312. doi : 10.1155/S1048953300000277. http://gdmltest.u-ga.fr/item/01623483/