@article{GDZPPN002215713,
title = {Singul\"are S-hermitische Rand-Eigenwertprobleme.},
journal = {Manuscripta mathematica},
volume = {2},
year = {1970},
pages = {35-68},
language = {de},
url = {http://dml.mathdoc.fr/item/GDZPPN002215713}
}
Niessen, Heinz-Dieter. Singuläre S-hermitische Rand-Eigenwertprobleme.. Manuscripta mathematica, Tome 2 (1970) pp. 35-68. http://gdmltest.u-ga.fr/item/GDZPPN002215713/