L. STOYANOV and R. A. IVANOV, “On the derivation of local/regional geodetic system”, Contrib. Geophys. Geod., vol. 36, no. 4, pp. 385–405, May 2021, Accessed: Feb. 04, 2026. [Online]. Available: https://journals.savba.sk/index.php/cgg/article/view/5024