@article{1250181379,
author = {Atalla, Robert E.},
title = {Spectrum of nonpositive contractions on C(X)},
journal = {Rocky Mountain J. Math.},
volume = {15},
number = {4},
year = {1985},
pages = { 207-214},
language = {en},
url = {http://dml.mathdoc.fr/item/1250181379}
}
Atalla, Robert E. Spectrum of nonpositive contractions on C(X). Rocky Mountain J. Math., Tome 15 (1985) no. 4, pp. 207-214. http://gdmltest.u-ga.fr/item/1250181379/