CAIXA: a catalogue of AGN in the XMM-Newton archive - II. Multiwavelength correlationsS. Bianchi, N. F. Bonilla, M. Guainazzi, G. Matt and G. PontiA&A, 501 3 (2009) 915-924DOI: https://doi.org/10.1051/0004-6361/200911905