6010 20240329120636.0 10.1007/s11207-022-02103-4 DOI SCART-2023-0002 Bhattacharya, Shreya Scale Transfer in 1849 : Heinrich Schwabe to Rudolf Wolf 2023 arXiv eprint = 2210.03362 STCE Sun Sunspots Sunspot number Astrophysics - Solar and Stellar Astrophysics Lefèvre, Laure Hayakawa, Hisashi Jansen, Maarten Clette, Frédéric Solar Physics 298 1 12 frederic.clette@observatoire.be https://link.springer.com/article/10.1007/s11207-022-02103-4 https://arxiv.org/abs/2210.03362 published in REFERD