Sabaitis, Deividas, Vytautas Giniotis, Mindaugas Rybokas, and Gintaras Dmitrijev. “Peculiarities of Producing and Measuring Circular Scales”. Geodesy and Cartography 37, no. 3 (November 1, 2011): 125-128. Accessed February 19, 2025. https://jeelm.vgtu.lt/index.php/GAC/article/view/5412.