TY - BOOK AU - Bartels, Julius ED - International Association of Geomagnetism and Aeronomy TI - Collection of geomagnetic planetary indices Kp and derived daily indices, Ap and Cp, for the years 1932 to 1961 T2 - International Association of Geomagnetism and Aeronomy; No. 18 PY - 1962/// CY - Amsterdam PB - International Union of Geodesy and Geophysics KW - Iaga Bulletin No.18Iaga Bulletin-dataIaga IndicesIugg ER -