Akimitsu, J.Ishida, K.Kitaoka, Y.Kotegawa, H.Muranaka, T.2004-12-032004-12-0320012001http://hdl.handle.net/2003/109410.17877/DE290R-2657enThe American Physical SocietyPhysical Review Letters530Evidence for Strong-Coupling s-Wave Superconductivity in MgB210.1103/PhysRevLett.87.127001article (journal)