@article{1102912207,
author = {Caradus, S. R.},
title = {Perturbation theory for generalized Fredholm operators.},
journal = {Pacific J. Math.},
volume = {55},
number = {2},
year = {1974},
pages = { 11-15},
language = {en},
url = {http://dml.mathdoc.fr/item/1102912207}
}
Caradus, S. R. Perturbation theory for generalized Fredholm operators.. Pacific J. Math., Tome 55 (1974) no. 2, pp. 11-15. http://gdmltest.u-ga.fr/item/1102912207/