Generation of fully three-mode continuous-variable entanglement in a single-atom laser X. Y. Lü, P. J. Song, P. Huang and X. X. Yang Eur. Phys. J. D, 56 2 (2010) 247-254 Published online: 17 November 2009 DOI: 10.1140/epjd/e2009-00284-4