@inproceedings{sgem2013s05033,
  title = {TIME VARIATION OF THE GEOMAGNETIC FIELD ON THE TERRITORY OF THE REPUBLIC OF MACEDONIA IN THE LAST 50 YEARS},
  author = {Marjan Delipetrev},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING},
  year = {2013},
  pages = {},
  publisher = {Stef92 Technology},
  doi = {10.5593/sgem2013/ba1.v2/s05.033}
}