A digital method to calculate the true areas of sunspot groups
Crossref DOI link: https://doi.org/10.1007/s10686-014-9381-6
Published Online: 2014-05-08
Published Print: 2014-11
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Çakmak, H.
Text and Data Mining valid from 2014-05-08
