@article{1102969780, author = {Herman, Louis}, title = {Semi-orthogonality in Rickart rings.}, journal = {Pacific J. Math.}, volume = {39}, number = {3}, year = {1971}, pages = { 179-186}, language = {en}, url = {http://dml.mathdoc.fr/item/1102969780} }
Herman, Louis. Semi-orthogonality in Rickart rings.. Pacific J. Math., Tome 39 (1971) no. 3, pp. 179-186. http://gdmltest.u-ga.fr/item/1102969780/