Multimode thermal-seeded parametric down-conversion: Entanglement and ghost imaging I. P. Degiovanni, M. Bondani, E. Puddu, A. Andreoni and M. G.A. Paris Eur. Phys. J. Special Topics, 160 (2008) 105-113 Published online: 18 June 2008 DOI: 10.1140/epjst/e2008-00714-y