Article
Astronomische Nachrichten  (2003)

Resolving the source populations that contribute to the X-ray background: The 2 Ms Chandra Deep Field-North Survey

Alexander, D. M.; Bauer, F. E.; Brandt, W. N.; Garmire, G. P.; Hornschemeier, A. E.; Schneider, D. P.; Vignali, C.