TY  - CPAPER
AU  - Todor Delipetrov
TI  - GEOMAGNETIC FIELD AND SECULAR VARIATIONS OF THE ASTRONOMICAL PARAMETARS
T2  - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING
PY  - 2013
DO  - 10.5593/sgem2013/ba1.v2/s05.010
PB  - Stef92 Technology
ER  -