Keller, M.Metzner, W.Schollwöck, U.2004-12-142004-12-1420012001http://hdl.handle.net/2003/1908110.17877/DE290R-1782enThe American Physical SocietyPhysical Review Letters530Dynamical Mean-Field Theory for Pairing and Spin Gap in the Attractive Hubbard Model10.1103/PhysRevLett.86.4612article (journal)