TY - BOOK ED - International Association of Geomagnetism and Aeronomy ED - International Union of Geodesy and Geophysics Inter-disciplinary Symposia TI - XVIII general assembly International Union of Geodesy and Geophysics: inter-disciplinary symposia; programme and abstracts, vol. 2 T2 - International Association of Geomagnetism and Aeronomy Bulletin; No. 48 PY - 1983/// CY - Hamburg PB - International Union of Geodesy and Geophysics KW - Iugg ER -