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1998PYunO..74....5Z - Publ. Yunnan Obs., 74, 5-15 (1998)
New progress in the study of some properties of BL Lac objects.
ZHANG X., XIE G.Z., BAI J.M., LI K.H. and FAN J.H.
Journal keyword(s):
CDS comments: Objects 0716+71 = S5 0716+714, 749+701 = QSO 1749+701, 2223+052 = QSO 2223-052, 0235+165 = QSO 0235+164.
Simbad objects: 29
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