Bogdanova, Galina, Donka Koleva, and Pavel Hristov. “Interactive Cultural Map of Veliko Tarnovo Municipality As a Part of the ECity Platform Veliko Tarnovo”. Digital Presentation and Preservation of Cultural and Scientific Heritage 4 (September 30, 2014): 270–275. Accessed December 22, 2024. https://dipp.math.bas.bg/dipp/article/view/dipp.2014.4.33.