Girkus, Romualdas, and Viktoras Lukoševičius. “Lithuanian Unpublished Interwar Topographical Maps”. Geodesy and Cartography 34, no. 3 (August 3, 2012): 103-108. Accessed April 16, 2024. https://journals.vilniustech.lt/index.php/GAC/article/view/10892.