@article{1255455460, author = {Davis, Chandler}, title = {Various averaging operations onto subalgebras}, journal = {Illinois J. Math.}, volume = {3}, number = {1}, year = {1959}, pages = { 538-553}, language = {en}, url = {http://dml.mathdoc.fr/item/1255455460} }
Davis, Chandler. Various averaging operations onto subalgebras. Illinois J. Math., Tome 3 (1959) no. 1, pp. 538-553. http://gdmltest.u-ga.fr/item/1255455460/