Kochelev, N. I.Vento, V.2004-12-032004-12-0320012001http://hdl.handle.net/2003/99210.17877/DE290R-10813enThe American Physical SocietyPhysical Review Letters530Instantons and the DeltaI = 1/2 Rule10.1103/PhysRevLett.87.111601article (journal)