@article{bwmeta1.element.bwnjournal-article-smv13i1p26bwm,
author = {T. Le\.za\'nski},
title = {The Fredholm Theory of Linear Equations in Banach spaces},
journal = {Studia Mathematica},
volume = {13},
year = {1953},
pages = {244-276},
zbl = {0052.12603},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv13i1p26bwm}
}
Leżański, T. The Fredholm Theory of Linear Equations in Banach spaces. Studia Mathematica, Tome 13 (1953) pp. 244-276. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv13i1p26bwm/