@article{1028998012,
author = {Rickart, C. E.},
title = {An elementary proof of a fundamental theorem in the theory of Banach algebras.},
journal = {Michigan Math. J.},
volume = {5},
number = {1},
year = {1958},
pages = { 75-78},
language = {en},
url = {http://dml.mathdoc.fr/item/1028998012}
}
Rickart, C. E. An elementary proof of a fundamental theorem in the theory of Banach algebras.. Michigan Math. J., Tome 5 (1958) no. 1, pp. 75-78. http://gdmltest.u-ga.fr/item/1028998012/