Similarities in precursory features in seismic shocks and epileptic seizures P. G. Kapiris, J. Polygiannakis, X. Li, X. Yao and K. A. Eftaxias Europhys. Lett., 69 4 (2005) 657-663 Published online: 21 January 2005 DOI: 10.1209/epl/i2004-10383-2