@article{1103039110, author = {Goldberg, Seymour}, title = {Ranges and inverses of perturbed linear operators.}, journal = {Pacific J. Math.}, volume = {9}, number = {4}, year = {1959}, pages = { 701-706}, language = {en}, url = {http://dml.mathdoc.fr/item/1103039110} }
Goldberg, Seymour. Ranges and inverses of perturbed linear operators.. Pacific J. Math., Tome 9 (1959) no. 4, pp. 701-706. http://gdmltest.u-ga.fr/item/1103039110/