Characterizing the dynamics of coupled pendulums via symbolic time series analysis G. De Polsi, C. Cabeza, A.C. Marti and C. Masoller Eur. Phys. J. Special Topics, 222 2 (2013) 501-510 Published online: 25 June 2013 DOI: 10.1140/epjst/e2013-01855-6