@article{1077475032,
author = {Johnson, R. E.},
title = {Equivalence rings},
journal = {Duke Math. J.},
volume = {15},
number = {1},
year = {1948},
pages = { 787-793},
language = {en},
url = {http://dml.mathdoc.fr/item/1077475032}
}
Johnson, R. E. Equivalence rings. Duke Math. J., Tome 15 (1948) no. 1, pp. 787-793. http://gdmltest.u-ga.fr/item/1077475032/