36 citations as recorded by crossref.

1. Historical sunspot observations: A review J. Vaquero 10.1016/j.asr.2007.01.087
2. The standard flare model in three dimensions G. Aulanier et al. 10.1051/0004-6361/201220406
3. Aurorae observed by Giuseppe Toaldo in Padua (1766–1797) F. Domínguez-Castro et al. 10.1051/swsc/2016016
4. Unaided-eye Sunspot Observations in 1769 November: A Comparison of Graphical Records in the East and the West H. Hayakawa et al. 10.1007/s11207-019-1488-5
5. Heavenly lights: An exploratory review of auroral ecosystem services and disservices J. Broome et al. 10.1016/j.ecoser.2024.101626
6. Analysis of pre-telescopic sunspots and auroras from 8th to 16th century M. Bekli & I. Chadou 10.1016/j.asr.2019.05.024
7. Soonspot: Software to Determine Areas and Sunspot Positions P. Galaviz et al. 10.1007/s11207-020-1587-3
8. Auroral Evidence for Early High Solar Activities H. Basurah 10.1007/s11207-004-1372-8
9. Iwahashi Zenbei’s Sunspot Drawings in 1793 in Japan H. Hayakawa et al. 10.1007/s11207-017-1213-1
10. The Great Space Weather Event during 1872 February Recorded in East Asia H. Hayakawa et al. 10.3847/1538-4357/aaca40
11. The extreme space weather events in October 1788 K. Hattori et al. 10.1093/pasj/psab079
12. Analyses for graphical records for a total solar eclipse in 1230 May: a possible reference for the ‘Medieval Grand Maximum’ H. Hayakawa et al. 10.1093/mnras/stad3874
13. A Transit of Venus Possibly Misinterpreted as an Unaided-Eye Sunspot Observation in China on 9 December 1874 H. Hayakawa et al. 10.1007/s11207-019-1504-9
14. Ancient Auroral Records Compiled From Korean Historical Books Y. Wang et al. 10.1029/2020JA028763
15. An Analysis of Trouvelot's Auroral Drawing on 1/2 March 1872: Plausible Evidence for Recurrent Geomagnetic Storms A. Bhaskar et al. 10.1029/2020JA028227
16. Records of sunspots and aurora candidates in the Chinese official histories of the Yuán and Míng dynasties during 1261–1644 H. Hayakawa et al. 10.1093/pasj/psx045
17. Auroras Observed in Portugal in Late 18th Century Obtained from Printed and Manuscript Meteorological Observations J. Vaquero & R. Trigo 10.1007/s11207-005-1583-7
18. A history of solar activity over millennia I. Usoskin 10.1007/s41116-023-00036-z
19. Revisiting Christoph Scheiner’s Sunspot Records: A New Perspective on Solar Activity of the Early Telescopic Era V. Carrasco et al. 10.3847/1538-4357/ac52ee
20. Stellar Flares, Superflares, and Coronal Mass Ejections—Entering the Big Data Era K. Vida et al. 10.3390/universe10080313
21. A 250‐year cycle in naked‐eye observations of sunspots J. Vaquero et al. 10.1029/2002GL014782
22. Historical aurora borealis catalog for Anatolia and Constantinople (hABcAC) during the Eastern Roman Empire period: implications for past solar activity N. Maden 10.5194/angeo-38-889-2020
23. Challenges of Using Historical Aurora Observations for the Reconstruction of Solar Activity before the 19th Century, Especially during and near the Maunder Minimum M. Stangl & U. Foelsche 10.3390/atmos15080941
24. A history of solar activity over millennia I. Usoskin 10.1007/s41116-017-0006-9
25. Records of auroral candidates and sunspots in Rikkokushi, chronicles of ancient Japan from early 7th century to 887 H. Hayakawa et al. 10.1093/pasj/psx087
26. A great space weather event in February 1730 H. Hayakawa et al. 10.1051/0004-6361/201832735
27. The Dalton Minimum and John Dalton’s Auroral Observations S. Silverman & H. Hayakawa 10.1051/swsc/2020082
28. The Celestial Sign in the Anglo-Saxon Chronicle in the 770s: Insights on Contemporary Solar Activity H. Hayakawa et al. 10.1007/s11207-019-1424-8
29. The earliest drawings of datable auroras and a two-tail comet from the Syriac Chronicle of Zūqnīn H. Hayakawa et al. 10.1093/pasj/psw128
30. A History of Solar Activity over Millennia I. Usoskin 10.12942/lrsp-2008-3
31. An investigation on time dependency of K index-based geomagnetic storm conditions observed over different locations of North America S. Choudhury 10.1007/s10509-019-3685-y
32. Low-latitude Aurorae during the Extreme Space Weather Events in 1859 H. Hayakawa et al. 10.3847/1538-4357/aae47c
33. Do the Chinese Astronomical Records Dated AD 776 January 12/13 Describe an Auroral Display or a Lunar Halo? A Critical Re-examination F. Stephenson et al. 10.1007/s11207-019-1425-7
34. A candidate auroral report in the Bamboo Annals, indicating a possible extreme space weather event in the early 10th century BCE M. van der Sluijs & H. Hayakawa 10.1016/j.asr.2022.01.010
35. Revisiting Kunitomo’s Sunspot Drawings During 1835 – 1836 in Japan M. Fujiyama et al. 10.1007/s11207-019-1429-3
36. On the Use of Naked-eye Sunspot Observations during the Maunder Minimum V. Carrasco et al. 10.3847/1538-4357/abbd3c