Multimode thermal-seeded parametric down-conversion: Entanglement and ghost imagingI. P. Degiovanni, M. Bondani, E. Puddu, A. Andreoni and M. G.A. ParisEur. Phys. J. Special Topics, 160 (2008) 105-113DOI: https://doi.org/10.1140/epjst/e2008-00714-y