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Principal components in the PG-X-ray QSO sample
Zhaohui Shang, Beverley J. Wills, Edward L. RobinsonVolume:
34
Year:
2004
Language:
english
Pages:
5
DOI:
10.1016/j.asr.2004.07.007
File:
PDF, 317 KB
english, 2004