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1.
| Science Article (Ref.) Scale Transfer in 1849 : Heinrich Schwabe to Rudolf Wolf
/ Bhattacharya, Shreya ; Lefèvre, Laure ; Hayakawa, Hisashi ; Jansen, Maarten ; et al
accepted to be published in Solar Physics (2023)
[SCART-2023-0002]
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2.
| Re-calibration of the Sunspot Number: Status Report
/ Clette, F. ; Lefèvre, L. ; Chatzistergos, T. ; Hayakawa, H. ; et al
submitted to Solar Physics (2023)
[SCART-2023-0001]
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3.
| Conf. Talk Hisako Koyama’s Sunspot Observations and their Digitization
/ Hayakawa, Hisashi ; Clette, Frédéric
Talk presented at ISSI Team Meeting 2, Recalibration of the Sunspot Number series, Bern, Switzerland on 2019-08-22
[CTALK-2020-0121]
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4.
| Science Article (Ref.) Sunspot observations by Hisako Koyama: 1945-1996
/ Hayakawa, Hisashi ; Clette, Frédéric ; Horaguchi, Toshihiro ; Iju, Tomoya ; et al
published in Monthly Notices of the Royal Astronomical Society, 492 issue 3, pp. 4513-4527 (2020)
10.1093/mnras/stz3345
[SCART-2020-0066]
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