Revealing X-ray obscured quasars in SWIRE sources with extreme mid-IR/optical flux ratios

Publisher: Edp Sciences

E-ISSN: 1432-0746|498|1|67-81

ISSN: 0004-6361

Source: Astronomy & Astrophysics, Vol.498, Iss.1, 2009-04, pp. : 67-81

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