M. Nisheva M, I. Pavlov P, L. Stanchev P. Semantic Search in Heterogeneous Digital Repositories: Case Studies. DiPP [Internet]. 2016 Sep. 30 [cited 2024 Dec. 26];6:65-72. Available from: https://dipp.math.bas.bg/dipp/article/view/dipp.2016.6.6