Jaffé, C.Uzer, T.Wiesenfeld, L.Wiggins, S.2004-12-142004-12-1420012001http://hdl.handle.net/2003/1880510.17877/DE290R-1563enThe American Physical SocietyPhysical Review Letters530Impenetrable Barriers in Phase-Space10.1103/PhysRevLett.86.5478article (journal)