@article{GDZPPN002295229,
title = {S-hermitesche Rand-Eigenwertprobleme. I.},
journal = {Mathematische Annalen},
volume = {161},
year = {1965},
pages = {9-26},
url = {http://dml.mathdoc.fr/item/GDZPPN002295229}
}
Schäfke, F.W.; SCHNEIDER, A. S-hermitesche Rand-Eigenwertprobleme. I.. Mathematische Annalen, Tome 161 (1965) pp. 9-26. http://gdmltest.u-ga.fr/item/GDZPPN002295229/