László Márkus, Zsolt, Gábor Kaposi, Tibor Szkaliczki, Detelin Luchev, and Radoslav Pavlov. “BOOK@HAND BIDL: Mobile Exploring of the Bulgarian Iconography by Using Panorama Pictures”. Digital Presentation and Preservation of Cultural and Scientific Heritage 5 (September 30, 2015): 109–120. Accessed May 3, 2024. https://dipp.math.bas.bg/dipp/article/view/dipp.2015.5.10.