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@article{SF_1971__2_133837, author = {J. Klasa}, title = {Semisimplicity and von {Neumann's} regularity.}, journal = {Semigroup forum}, pages = {354--361}, publisher = {mathdoc}, volume = {2}, year = {1971}, zbl = {0233.18003}, url = {http://geodesic.mathdoc.fr/item/SF_1971__2_133837/} }
J. Klasa. Semisimplicity and von Neumann's regularity.. Semigroup forum, Tome 2 (1971), pp. 354-361. http://geodesic.mathdoc.fr/item/SF_1971__2_133837/