@article{1077491734,
author = {Eaton, J. E.},
title = {Theory of cogroups},
journal = {Duke Math. J.},
volume = {6},
number = {1},
year = {1940},
pages = { 101-107},
language = {en},
url = {http://dml.mathdoc.fr/item/1077491734}
}
Eaton, J. E. Theory of cogroups. Duke Math. J., Tome 6 (1940) no. 1, pp. 101-107. http://gdmltest.u-ga.fr/item/1077491734/