@article{1102959506,
author = {Halpern, Herbert},
title = {Essential central spectrum and range for elements of a von Neumann algebra.},
journal = {Pacific J. Math.},
volume = {43},
number = {3},
year = {1972},
pages = { 349-380},
language = {en},
url = {http://dml.mathdoc.fr/item/1102959506}
}
Halpern, Herbert. Essential central spectrum and range for elements of a von Neumann algebra.. Pacific J. Math., Tome 43 (1972) no. 3, pp. 349-380. http://gdmltest.u-ga.fr/item/1102959506/