Group Sunspot Numbers: A New Reconstruction of Sunspot Activity Variations from Historical Sunspot Records Using Algorithms from Machine LearningDOI: info:10.1007/s11207-021-01926-xv. 2978
Velasco Herrera, Víctor Manuel, Soon, Willie, Hoyt, Douglas V., and Muraközy, Judit. 2022. "Group Sunspot Numbers: A New Reconstruction of Sunspot Activity Variations from Historical Sunspot Records Using Algorithms from Machine Learning." Solar Physics, 297 8. https://doi.org/10.1007/s11207-021-01926-x.