@article{1200693933,
author = {Mart\'\i nez, Juan Jos\'e},
title = {The first cohomology group of a commutative ring},
journal = {Osaka J. Math.},
volume = {9},
number = {1},
year = {1972},
pages = { 415-420},
language = {en},
url = {http://dml.mathdoc.fr/item/1200693933}
}
Martínez, Juan José. The first cohomology group of a commutative ring. Osaka J. Math., Tome 9 (1972) no. 1, pp. 415-420. http://gdmltest.u-ga.fr/item/1200693933/