Milieškaitė, Jurgita. “The Application of Covariation Method to the Analysis (comparable) of Digital Images in Cartography”. Geodesy and Cartography 36, no. 1 (August 3, 2012): 30-34. Accessed May 18, 2024. https://btp.vgtu.lt/index.php/GAC/article/view/10834.