Jasiūnas, J., E. Maneikaitė, P. Venckus, D. Romanovas, and G. Beconytė. “Mapping the Undiscovered Objects and Sites in Lithuania”. Geodesy and Cartography, vol. 39, no. 2, June 2013, pp. 64-71, doi:10.3846/20296991.2013.807960.