@article{MS2_1959__7_165716,
     author = {Inge Brinck},
     title = {Self-Adjointness and {Spectra} of {Sturm-Liouville} {Operators.}},
     journal = {Mathematica Scandinavica},
     pages = {219--240},
     publisher = {mathdoc},
     volume = {7},
     year = {1959},
     zbl = {0102.30102},
     url = {http://geodesic.mathdoc.fr/item/MS2_1959__7_165716/}
}