@article{GDZPPN002296322, title = {Eine Klasse irreduzibler positiver Operatoren.}, journal = {Mathematische Annalen}, volume = {163}, year = {1966}, pages = {26-30}, language = {de}, url = {http://dml.mathdoc.fr/item/GDZPPN002296322} }
SCHAEFER, H.H. Eine Klasse irreduzibler positiver Operatoren.. Mathematische Annalen, Tome 163 (1966) pp. 26-30. http://gdmltest.u-ga.fr/item/GDZPPN002296322/