Hristov, G.,
Zahariev, P.,
Kinaneva, D.,
Tsvetkova, I.,
Raychev, J., &
Kyostebekov, E.
().
Use of unmanned aerial vehicle for photogrammetric data gathering and digital 3D reconstruction of archaeological excavation sites. // <I>Proc.<D> 57th Science conference of university of Ruse ''A. Kanchev'', 57, 2018, № 3.2, с. 40-45.. (2335),