@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/