Aksamitauskas, Vladislovas Česlovas, and Donatas Rekus. “Accuracy Research on Coded Levelling Staff Using Digital Photos”. Geodesy and Cartography 35, no. 4 (August 3, 2012): 140-143. Accessed November 23, 2024. https://bme.vgtu.lt/index.php/GAC/article/view/10861.