00448nam a2200157Ia 4500003000900000008004100009040001600050080001500066100002100081245008500102260005500187300000900242650001300251650001800264650000800282IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a523.9bBIR  aBirkeland, K. R. 0aRecherches sur les taches du soleil et leur origine (in French)cK. R. Birkeland  aChristianiabEn Commission Chez Jacob Dybwadc1899  a173p  aArchives  aSolar physics  aSun