@article{GDZPPN001164619,
title = {On the Sturm-Liouville Theory and the Eigenvalues of Intermediate Problems.},
journal = {Numerische Mathematik},
volume = {5},
year = {1963},
pages = {238-245},
zbl = {0123.11501},
url = {http://dml.mathdoc.fr/item/GDZPPN001164619}
}
WEINSTEIN, A. On the Sturm-Liouville Theory and the Eigenvalues of Intermediate Problems.. Numerische Mathematik, Tome 5 (1963) pp. 238-245. http://gdmltest.u-ga.fr/item/GDZPPN001164619/