Giubileo, F.Lamy, R.Roditchev, D.Sacks, W.Thanh, D. X.2004-12-032004-12-0320012001http://hdl.handle.net/2003/140910.17877/DE290R-11223enThe American Physical SocietyPhysical Review Letters530Two-Gap State Density in MgB2: A True Bulk Property Or A Proximity Effect?10.1103/PhysRevLett.87.177008article (journal)