@article{1102364181,
author = {Bratteli, Ola and Elliott, George A.},
title = {Small eigenvalue variation and real rank zero.},
journal = {Pacific J. Math.},
volume = {176},
number = {2},
year = {1996},
pages = { 47-59},
language = {en},
url = {http://dml.mathdoc.fr/item/1102364181}
}
Bratteli, Ola; Elliott, George A. Small eigenvalue variation and real rank zero.. Pacific J. Math., Tome 176 (1996) no. 2, pp. 47-59. http://gdmltest.u-ga.fr/item/1102364181/