Glück, M.Keck, F.Kolovsky, A. R.Korsch, H. J.2004-12-272004-12-2720012001http://hdl.handle.net/2003/1934810.17877/DE290R-6995enThe American Physical SocietyPhysical Review Letters530Wannier-Stark States of a Quantum Particle in 2D Lattices10.1103/PhysRevLett.86.3116article (journal)