@article{1102645606,
author = {Haddad, Labib and Sureau, Yves},
title = {Les cogroupes et la construction de Utumi.},
journal = {Pacific J. Math.},
volume = {146},
number = {2},
year = {1990},
pages = { 17-58},
language = {fr},
url = {http://dml.mathdoc.fr/item/1102645606}
}
Haddad, Labib; Sureau, Yves. Les cogroupes et la construction de Utumi.. Pacific J. Math., Tome 146 (1990) no. 2, pp. 17-58. http://gdmltest.u-ga.fr/item/1102645606/