GIRKUS, Romualdas; LUKOŠEVIČIUS, Viktoras. Lithuanian unpublished interwar topographical maps. Geodesy and Cartography, [S. l.], v. 34, n. 3, p. 103–108, 2012. DOI: 10.3846/1392-1541.2008.34.103-108. Disponível em: https://journals.vilniustech.lt/index.php/GAC/article/view/10892. Acesso em: 9 may. 2025.