Novel doorways and resonances in large-scale classical systemsJ. A. Franco-Villafañe, J. Flores, J. L. Mateos, R. A. Méndez-Sánchez, O. Novaro and T. H. SeligmanEPL, 94 3 (2011) 30005DOI: https://doi.org/10.1209/0295-5075/94/30005