@article{1183511457,
author = {Levi, F. W.},
title = {Pairs of inverse modules in a skewfield},
journal = {Bull. Amer. Math. Soc.},
volume = {53},
number = {12},
year = {1947},
pages = { 1177-1182},
language = {en},
url = {http://dml.mathdoc.fr/item/1183511457}
}
Levi, F. W. Pairs of inverse modules in a skewfield. Bull. Amer. Math. Soc., Tome 53 (1947) no. 12, pp. 1177-1182. http://gdmltest.u-ga.fr/item/1183511457/