@article{GDZPPN002295474,
title = {\"Uber das Randspektrum positiver Operatoren.},
journal = {Mathematische Annalen},
volume = {161},
year = {1965},
pages = {289-293},
zbl = {0151.19802},
url = {http://dml.mathdoc.fr/item/GDZPPN002295474}
}
SCHAEFER, H.H. Über das Randspektrum positiver Operatoren.. Mathematische Annalen, Tome 161 (1965) pp. 289-293. http://gdmltest.u-ga.fr/item/GDZPPN002295474/