Dobrescu, Bogdan A.Poppitz, Erich2004-12-032004-12-0320012001http://hdl.handle.net/2003/53110.17877/DE290R-10307enThe American Physical SocietyPhysical Review Letters530Number of Fermion Generations Derived from Anomaly Cancellation10.1103/PhysRevLett.87.031801article (journal)