Hsu, F. H.Li, H. H.Lin, J.-Y.Liu, C. J.Yang, H. D.2004-12-032004-12-0320012001http://hdl.handle.net/2003/133310.17877/DE290R-11127enThe American Physical SocietyPhysical Review Letters530Order Parameter of MgB2: A Fully Gapped Superconductor10.1103/PhysRevLett.87.167003article (journal)