Published in
American Astronomical Society, Astrophysical Journal, 1(693), p. 8-22, 2009
DOI: 10.1088/0004-637x/693/1/8
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HIGH-REDSHIFT QUASARS IN THE COSMOS SURVEY: THE SPACE DENSITY OFz> 3 X-Ray SELECTED QSOs
Journal article published in 2009 by
M. Brusa,
A. Comastri,
R. Gilli,
G. Hasinger,
K. Iwasawa,
V. Mainieri,
M. Mignoli 
,
M. Salvato,
G. Zamorani,
A. Bongiorno,
N. Cappelluti,
F. Civano,
F. Fiore,
A. Merloni,
J. Silverman
and other authors.
,
M. Salvato,
G. Zamorani,
A. Bongiorno,
N. Cappelluti,
F. Civano,
F. Fiore,
A. Merloni,
J. Silverman
and other authors.
This paper is made freely available by the publisher.
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