Novel doorways and resonances in large-scale classical systems J. A. Franco-Villafañe, J. Flores, J. L. Mateos, R. A. Méndez-Sánchez, O. Novaro and T. H. Seligman EPL, 94 3 (2011) 30005 Published online: 28 April 2011 DOI: 10.1209/0295-5075/94/30005