A Vlasov approach to bunching and selfordering of particles in optical resonators H. Ritsch, M. Hemmerling and G. R.M. Robb Eur. Phys. J. D, 58 3 (2010) 349-368 Published online: 26 April 2010 DOI: 10.1140/epjd/e2010-00113-9