@article{1250131224, author = {Leavitt, W.G.}, title = {General radical theory in rings}, journal = {Rocky Mountain J. Math.}, volume = {3}, number = {4}, year = {1973}, pages = { 431-440}, language = {en}, url = {http://dml.mathdoc.fr/item/1250131224} }
Leavitt, W.G. General radical theory in rings. Rocky Mountain J. Math., Tome 3 (1973) no. 4, pp. 431-440. http://gdmltest.u-ga.fr/item/1250131224/