Article ISI
ASTRONOMY & ASTROPHYSICS  (2009)

A multi-wavelength survey of AGN in the XMM-LSS field I. Quasar selection via the KX technique

Nakos T.; Willis, JP; Andreon, S.; Surdej, J; Riaud P.; Hatziminaoglou, E; Garcet O.; Alloin D.; Baes, M; Galaz, G; Pierre M.; Quintana, H; Page, MJ; Tedds, JA; Ceballos, MT; Corral A.; Ebrero, J; Krumpe M.; Mateos S.