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Test of Periodicity in the Quasar OJ 287
Stothers & Sillanpää 1997 The Astrophysical Journal Letters 475 L13.
Caption: Fig. 1.
B‐magnitude light curve of OJ 287 over the time interval 1891–1996.
©1997. The American Astronomical Society. All rights reserved. Printed in U.S.A.