Suppression of limit cycles in a free electron laser C. Bruni, S. Bielawski, G. L. Orlandi, D. Garzella and M. E. Couprie Eur. Phys. J. D, 39 1 (2006) 75-85 Published online: 11 April 2006 DOI: 10.1140/epjd/e2006-00077-3