@article{1102945417,
author = {Altman, Mieczyslaw},
title = {Contractors, approximate identities and factorization in Banach algebras.},
journal = {Pacific J. Math.},
volume = {49},
number = {2},
year = {1973},
pages = { 323-334},
language = {en},
url = {http://dml.mathdoc.fr/item/1102945417}
}
Altman, Mieczyslaw. Contractors, approximate identities and factorization in Banach algebras.. Pacific J. Math., Tome 49 (1973) no. 2, pp. 323-334. http://gdmltest.u-ga.fr/item/1102945417/