@article{1256055101,
author = {Walker, Carol Peercy},
title = {Relative homological algebra and abelian groups},
journal = {Illinois J. Math.},
volume = {10},
number = {4},
year = {1966},
pages = { 186-209},
language = {en},
url = {http://dml.mathdoc.fr/item/1256055101}
}
Walker, Carol Peercy. Relative homological algebra and abelian groups. Illinois J. Math., Tome 10 (1966) no. 4, pp. 186-209. http://gdmltest.u-ga.fr/item/1256055101/