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Additional information
Byurakan Astrophysical Observatory; Abastumani Astrophysical Observatory; Astronomical Institute of the University of Padua, Italy. Translated from Astrofizika, Vol. 28, No. 2, pp. 329–334, March–April, 1988.
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Melikyan, N.D., Natsvlishvili, R.S. & Valle, M.D. Observations of the long-period variable star Y Ori. Astrophysics 28, 193–197 (1988). https://doi.org/10.1007/BF01004068
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DOI: https://doi.org/10.1007/BF01004068