Excitability of periodic and chaotic attractors in semiconductor lasers with optoelectronic feedback K. Al-Naimee, F. Marino, M. Ciszak, S. F. Abdalah, R. Meucci and F. T. Arecchi Eur. Phys. J. D, 58 2 (2010) 187-189 Published online: 06 April 2010 DOI: 10.1140/epjd/e2010-00093-8