id	keyword
ejpam-2010	morita
ejpam-2010	equivalent
ejpam-2010	semigroups
ejpam-2010	rings
ejpam-2010	units
ejpam-2010	morita equivalent
ejpam-2010	theorem
ejpam-2010	left
ejpam-2010	inverse
ejpam-2010	theory
ejpam-2010	following