@article{1102779381, author = {Riffelmacher, Dave}, title = {Sweedler's two-cocycles and Hochschild cohomology.}, journal = {Pacific J. Math.}, volume = {91}, number = {2}, year = {1980}, pages = { 181-188}, language = {en}, url = {http://dml.mathdoc.fr/item/1102779381} }
Riffelmacher, Dave. Sweedler's two-cocycles and Hochschild cohomology.. Pacific J. Math., Tome 91 (1980) no. 2, pp. 181-188. http://gdmltest.u-ga.fr/item/1102779381/