Castellanos, AntonioSanchez Quintanilla, Miguel AngelValverde, Jose Manuel2004-12-272004-12-2720012001http://hdl.handle.net/2003/1932410.17877/DE290R-6972enThe American Physical SocietyPhysical Review Letters530Self-Diffusion in a Gas-Fluidized Bed of Fine Powder10.1103/PhysRevLett.86.3020article (journal)