TY - BOOK AU - Bartels, Julius AU - Romana, A.Veldkamp, J. ED - International Association of Geomagnetism and Aeronomy TI - Geomagnetic data 1960: indices K and C T2 - International Association of Geomagnetism and Aeronomy; No. 12o1 PY - 1963/// CY - Amsterdam PB - International Union of Geodesy and Geophysics KW - Iaga Bulletin No.12o1Iaga Bulletin-dataIaga IndicesIugg ER -