@article{03967832, title = {Finite difference methods for computing eigenvalues of fourth order boundary value problems.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {9}, year = {1986}, pages = {137-143}, doi = {10.1155/S0161171286000170}, zbl = {0599.65057}, language = {en}, url = {http://dml.mathdoc.fr/item/03967832} }
Usmani, Riaz A. Finite difference methods for computing eigenvalues of fourth order boundary value problems.. International Journal of Mathematics and Mathematical Sciences, Tome 9 (1986) pp. 137-143. doi : 10.1155/S0161171286000170. http://gdmltest.u-ga.fr/item/03967832/