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Hynes, Robert I.; Schaefer, Bradley E.; Baum, Zachary A.; Hsu, Ching-Cheng; Cherry, Michael L.; Scaringi, Simone. Kepler K2 observations of Sco X-1: orbital modulations and correlations with Fermi GBM and MAXI. Monthly Notices of the Royal Astronomical Society. July 2016, 459 (4): 3596–3613. Bibcode:2016MNRAS.459.3596H. arXiv:1605.00546. doi:10.1093/mnras/stw854.