@article{1103038247, author = {Schaefer, Helmut}, title = {Some spectral properties of positive linear operators.}, journal = {Pacific J. Math.}, volume = {10}, number = {4}, year = {1960}, pages = { 1009-1019}, language = {en}, url = {http://dml.mathdoc.fr/item/1103038247} }
Schaefer, Helmut. Some spectral properties of positive linear operators.. Pacific J. Math., Tome 10 (1960) no. 4, pp. 1009-1019. http://gdmltest.u-ga.fr/item/1103038247/