@article{1255455265, author = {Walter, John H.}, title = {Structure of cleft rings I}, journal = {Illinois J. Math.}, volume = {3}, number = {1}, year = {1959}, pages = { 445-467}, language = {en}, url = {http://dml.mathdoc.fr/item/1255455265} }
Walter, John H. Structure of cleft rings I. Illinois J. Math., Tome 3 (1959) no. 1, pp. 445-467. http://gdmltest.u-ga.fr/item/1255455265/