Shulgan, Roman, Olena Kibukevich, Oleksandr Yanchuk, and Kateryna Nikolaichuk. “GRID-Model of Natural Agricultural Zoning”. Geodesy and Cartography 43, no. 1 (March 27, 2017): 22-27. Accessed July 7, 2024. https://jau.vgtu.lt/index.php/GAC/article/view/528.