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ASTROPHYSICAL JOURNAL, 372(1), L9-L12. 10.1086/186011
EDELSON, RA, SAKEN, JM, PIKE, GF et al. (1991). RAPID ULTRAVIOLET VARIABILITY IN THE BL LACERTAE OBJECT PKS-2155-304
. ASTROPHYSICAL JOURNAL, 372(1), L9-L12. 10.1086/186011