Affiliation: | (1) Geodetic and Geophysical Research Institute of the Hungarian Academy of Sciences, H-9401 Sopron, Pf. 5, Hungary;(2) Dipartimento di Fisica, Universita dellAquila, Via Vetoio, I-67010, Coppito-LAquila, Italy;(3) Geofysikalni Ústav, AV R, Praha 4, Spoilov. Boni II 1401, CZ-14131, Czech Republic;(4) GeoForschungsZentrum Potsdam, Telegrafenberg, D-14473, Potsdam, Germany;(5) GeoForschungsZentrum Potsdam, Adolf Schmidt Geomagnetisches Observatorium, D-14823 Niemegk, Germany;(6) Loránd Eötvös Geophysical Institute, H-1440 Budapest, Pf. 35, Hungary;(7) Institute of Geophysics, Loránd Eötvös University, H-1083 Budapest, Ludovika tér 2, Hungary |