@article{1250187224,
author = {Head, Tom},
title = {Preservation of coproducts by $\Hom\_R(M,-)$},
journal = {Rocky Mountain J. Math.},
volume = {2},
number = {4},
year = {1972},
pages = { 235-238},
language = {en},
url = {http://dml.mathdoc.fr/item/1250187224}
}
Head, Tom. Preservation of coproducts by $\Hom_R(M,-)$. Rocky Mountain J. Math., Tome 2 (1972) no. 4, pp. 235-238. http://gdmltest.u-ga.fr/item/1250187224/