M. Nisheva, Maria, Pavel I. Pavlov, and Peter L. Stanchev. “Semantic Search in Heterogeneous Digital Repositories: Case Studies”. Digital Presentation and Preservation of Cultural and Scientific Heritage 6 (September 30, 2016): 65–72. Accessed December 26, 2024. https://dipp.math.bas.bg/dipp/article/view/dipp.2016.6.6.