Space Pole Publications Server 2 records found  Search took 0.00 seconds. 
1.
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]
2.
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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