Delipetrev, Marjan, Nenad Novkovski, and Todor Delipetrov. “New Geomagnetic Measurements in the Republic of Macedonia”. Annals of Geophysics 56, no. 3 (August 30, 2013): R0327. Accessed April 24, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/5311.