Madanska, Sebiha, and Asya Stoyanova-Doycheva. “Integration of Cultural and Historical Heritage Ontologies into an Ontological Network”. Digital Presentation and Preservation of Cultural and Scientific Heritage 15 (September 5, 2025): 293–298. Accessed September 10, 2025. https://dipp.math.bas.bg/dipp/article/view/dipp.2025.15.27.