@article{1255629646, author = {Haimo, F. and Mac Lane, S.}, title = {The cohomology theory of a pair of groups}, journal = {Illinois J. Math.}, volume = {5}, number = {1}, year = {1961}, pages = { 45-60}, language = {en}, url = {http://dml.mathdoc.fr/item/1255629646} }
Haimo, F.; Mac Lane, S. The cohomology theory of a pair of groups. Illinois J. Math., Tome 5 (1961) no. 1, pp. 45-60. http://gdmltest.u-ga.fr/item/1255629646/