Dimova, Maria, Stanislava Slavova-Petkova, and Detelin Luchev. “Models of Digital Book Trailers and Applications of Digital Storytelling Approach for Educational Purposes”. Digital Presentation and Preservation of Cultural and Scientific Heritage 8 (September 3, 2018): 197–206. Accessed May 29, 2024. https://dipp.math.bas.bg/dipp/article/view/dipp.2018.8.19.