18 citations · 23 across the 4 of their papers we have counts for
1 paper · 1 filter
V. M. S. Carrasco, J. M. Vaquero, M. C. Gallego +3
A sunspot catalogue was published by the Coimbra Astronomical Observatory (Portugal), now named Geophysical and Astronomical Observatory of the University of Coimbra, for the perio…