@article{GDZPPN001168282, title = {Numerische Behandlung singul\"arer Sturm-Liouville-Probleme.}, journal = {Numerische Mathematik}, volume = {13}, year = {1969}, pages = {434-447}, language = {de}, url = {http://dml.mathdoc.fr/item/GDZPPN001168282} }
NATTERER, F. Numerische Behandlung singulärer Sturm-Liouville-Probleme.. Numerische Mathematik, Tome 13 (1969) pp. 434-447. http://gdmltest.u-ga.fr/item/GDZPPN001168282/