@article{03994962, title = {Numerical methods for approximating eigenvalues of boundary value problems.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {9}, year = {1986}, pages = {567-575}, doi = {10.1155/S0161171286000716}, zbl = {0614.65094}, language = {en}, url = {http://dml.mathdoc.fr/item/03994962} }
Usmani, Riaz A.; Isa, Mohammad. Numerical methods for approximating eigenvalues of boundary value problems.. International Journal of Mathematics and Mathematical Sciences, Tome 9 (1986) pp. 567-575. doi : 10.1155/S0161171286000716. http://gdmltest.u-ga.fr/item/03994962/