http://arxiv.org/abs/1310.6842
OI 090.4 was monitored on 21 nights from 2006 to 2012 for studying the variability. Strong variations occurred during the past 6 years. The long-term variability amplitude is consistent with previous results. Microvariability was analyzed for 43 intra-night light curves. 30 out of 43 light curves showed microvariability by C and F tests analysis.
Date added: Mon, 28 Oct 13
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