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2009ATel.2228....1G - The Astronomer's Telegram, 2228, 1-1 (2009)
A prominent fluctuation in the optical brightness of Q0957+561A and prediction of the Q0957+561B optical variability in the first semester of 2010.
GOICOECHEA L.J. and SHALYAPIN V.N.
Journal keyword(s):
Simbad objects: 2
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