Search for: [Subject = geomagnetic field] OR [Subject = secular changes] OR [Subject = maps of isopors] OR [Subject = IGRF model] OR [Subject = Europe] OR [Subject = pole magnetyczne Ziemi] OR [Subject = zmiany wiekowe] OR [Subject = mapy izopor] OR [Subject = model IGRF] OR [Title = Secular Variations of the Geomagnetic Field in Europe] OR [Creator = Sas\-Uhrynowski, Andrzej] OR [Creator = Welker, Elżbieta]
