The Variability Properties of X‐Ray–steep and X‐Ray–flat Quasars
نویسندگان
چکیده
منابع مشابه
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 1998
ISSN: 0004-637X,1538-4357
DOI: 10.1086/306031