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| Home > Conference Contributions & Seminars > Conference Talks > Contributed Talks > Hisako Koyama’s Sunspot Observations and their Digitization |
| Home > Conference Contributions & Seminars > Conference Talks > Contributed Talks > 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
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Royal Observatory of Belgium > Solar Physics & Space Weather (SIDC)
Solar-Terrestrial Centre of Excellence