Bassani99 1999ApJS..121..473B Bassani et al. Cat. Blustin02 2002A&A...392..453B Blustin et al. Boller02 2002MNRAS.336.1143B Boller et al. Braito03 2003A&A...398..107B Braito et al. Brandt97 1997MNRAS.290..617B Brandt et al. Cappi99 1999A&A...344..857C Cappi et al. DellaCeca01 2001A&A...375..781D Della Ceca et al. Fukazawa01 2001A&A...374...73F Fukazawa et al. George00 2000ApJ...531...52G George et al. Gondoin01a 2001A&A...373..805G Gondoin et al. Gondoin01b 2001A&A...378..806G Gondoin et al. Gondoin02 2002A&A...388...74G Gondoin et al. Gondoin03a 2003A&A...397..883G Gondoin et al. Gondoin03b 2003A&A...398..967G Gondoin et al. Guainazzi00 2000A&A...356..463G Guainazzi et al. Guainazzi01 2001MNRAS.323...75G Guainazzi et al. Immler03 2003AJ....126..153I Immler et al. Iyomoto96 1996PASJ...48..231I Iyomoto et al. Landi01 2001A&A...379...46L Landi et al. Lawson97 1997MNRAS.288..920L Lawson et al. Maiolino98 1998A&A...338..781M Maiolino et al. Malizia97 1997ApJS..113..311M Malizia et al. Malizia99 1999ApJ...519..637M Malizia et al. Matt00 2000A&A...363..863M Matt et al. Matt97 1997A&A...325L..13M Matt et al. Matt99 1999A&A...341L..39M Matt et al. Nandra94 1994MNRAS.268..405N Nandra & Pounds OBrien01 2001MNRAS.327L..37O O'Brien et al. Ogasaka97 1997PASJ...49..179O Ogasaka et al. Perola00 2000A&A...358..117P Perola et al. Perola02 2002A&A...389..802P Perola et al. Polletta96 1996ApJS..106..399P Polletta et al. Cat. Rao92 1992MNRAS.255..197R Rao et al. Reeves00 2000MNRAS.316..234R Reeves et al. Reynolds97 1997MNRAS.286..513R Reynolds Risaliti00 2000A&A...356...33R Risaliti et al. Severgnini01 2001A&A...368...44S Severgnini et al. Turner01 2001ApJ...561..131T Turner et al. Vignati99 1999A&A...349L..57V Vignati et al. Yang01 2001ApJ...563..124Y Yang et al.