JIVALL, Lotti; KAMINSKIS, Jānis; PARŠELIŪNAS, Eimuntas. Improvement and extension of ETRS 89 in Latvia and Lithuania based on the NKG 2003 GPS campaign. Geodesy and Cartography, [S. l.], v. 33, n. 1, p. 13–20, 2012. DOI: 10.3846/13921541.2007.9636710. Disponível em: https://journals.vilniustech.lt/index.php/GAC/article/view/10927. Acesso em: 10 may. 2025.