Ruzgienė, Birutė. “Analysis of Methods for Generation of Digital Relief Model and Accuracy Evaluation Using Digital Photogrammetry Technology”. Geodesy and Cartography 36, no. 2 (August 3, 2012): 57-62. Accessed April 25, 2024. https://journals.vilniustech.lt/index.php/GAC/article/view/10822.