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1991BAAS...23..923S - Bull. American Astron. Soc., 23, 923 (1991)
Extreme X-ray variability of the BL Lac PKS 2155-304.
SOKOLOSKI J., URRY C.M., WARWICK R., SEMBAY S. and OHASHI T.
Journal keyword(s):
Simbad objects: 1
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