1. Sunspot Observations on 10 and 11 February 1917: A Case Study in Collating Known and Previously Undocumented Records. Issue 11 (7th November 2018) Authors: Willis, D. M.; Wilkinson, J.; Scott, C. J.; Wild, M. N.; Stephenson, F. R.; Hayakawa, H.; Brugge, R.; Macdonald, L. T. Journal: Space weather Issue: Volume 16:Issue 11(2018) Page Start: 1740 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗