@article{GDZPPN001184873, title = {Accurate computation of higher Sturm-Liouville eigenvalues.}, journal = {Numerische Mathematik}, volume = {59}, year = {1991}, pages = {243-254}, zbl = {0716.65079}, url = {http://dml.mathdoc.fr/item/GDZPPN001184873} }
Vanden Berghe, G.; De Meyer, H. Accurate computation of higher Sturm-Liouville eigenvalues.. Numerische Mathematik, Tome 59 (1991) pp. 243-254. http://gdmltest.u-ga.fr/item/GDZPPN001184873/