@article{GDZPPN002393379,
title = {Spektraleigenschaften positiver linearer Operatoren.},
journal = {Mathematische Zeitschrift},
volume = {82},
year = {1963},
pages = {303-313},
zbl = {0151.19801},
url = {http://dml.mathdoc.fr/item/GDZPPN002393379}
}
Schaefer, Helmut H. Spektraleigenschaften positiver linearer Operatoren.. Mathematische Zeitschrift, Tome 82 (1963) pp. 303-313. http://gdmltest.u-ga.fr/item/GDZPPN002393379/