@article{GDZPPN002345919,
title = {Self-Adjointness and Spectra of Sturm-Liouville Operators.},
journal = {Mathematica Scandinavica},
volume = {7},
year = {1959},
pages = {219-240},
zbl = {0102.30102},
url = {http://dml.mathdoc.fr/item/GDZPPN002345919}
}
Brinck, Inge. Self-Adjointness and Spectra of Sturm-Liouville Operators.. Mathematica Scandinavica, Tome 7 (1959) pp. 219-240. http://gdmltest.u-ga.fr/item/GDZPPN002345919/