@article{1077466123,
author = {Weinberger, H. F.},
title = {An extension of the classical Sturm-Liouville theory},
journal = {Duke Math. J.},
volume = {22},
number = {1},
year = {1955},
pages = { 1-14},
language = {en},
url = {http://dml.mathdoc.fr/item/1077466123}
}
Weinberger, H. F. An extension of the classical Sturm-Liouville theory. Duke Math. J., Tome 22 (1955) no. 1, pp. 1-14. http://gdmltest.u-ga.fr/item/1077466123/