Kacmarcík, J.Klein, T.Marcus, J.Samuely, P.Szabó, P.2004-12-032004-12-0320012001http://hdl.handle.net/2003/117610.17877/DE290R-11000enThe American Physical SocietyPhysical Review Letters530Evidence for Two Superconducting Energy Gaps in MgB2 by Point-Contact Spectroscopy10.1103/PhysRevLett.87.137005article (journal)