TY - CPAPER AU - Avramovska, s. Rada AU - Delipetrov, Todor AU - Doneva, Blagica AU - Delipetrev, Marjan TI - HARMONIC ANALYSIS OF SECULAR CHANGES OF THE ORBITAL PARAMETERS AND GEOMAGNETIC FIELD T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING PY - 2013 SP - 779 EP - 784 pp DO - 10.5593/sgem2013/ba1.v2/s05.013 PB - Stef92 Technology ER -