Metsar, Jaanus, Karin Kollo, and Artu Ellmann. “Modernization of the Estonian National GNSS Reference Station Network”. Geodesy and Cartography 44, no. 2 (August 8, 2018): 55-62. Accessed December 24, 2024. https://jest.vgtu.lt/index.php/GAC/article/view/2023.