@article{1255629652, author = {Gray, John W.}, title = {Extensions of sheaves of algebras}, journal = {Illinois J. Math.}, volume = {5}, number = {1}, year = {1961}, pages = { 159-174}, language = {en}, url = {http://dml.mathdoc.fr/item/1255629652} }
Gray, John W. Extensions of sheaves of algebras. Illinois J. Math., Tome 5 (1961) no. 1, pp. 159-174. http://gdmltest.u-ga.fr/item/1255629652/