Orlyuk, M.I., A. V. Romenets, P. V. Sumaruk, Yu. P. Sumaruk, and T. P. Sumaruk. “The Spatial-Temporal Structure of the Magnetic Field of Ukraine’s Territory: Assessment of the Contribution of Internal and External Sources”. Geofizicheskiy Zhurnal 34, no. 3 (June 1, 2012): 137–144. Accessed May 1, 2024. https://journals.uran.ua/geofizicheskiy/article/view/116651.