Minin А.С. and Chuprina С.И. 2021. Methods and tools to build ontology driven knowledge acquisition systems. BULLETIN OF PERM UNIVERSITY. MATHEMATICS. MECHANICS. COMPUTER SCIENCE. 4 (55) (Dec. 2021), 25–34. DOI:https://doi.org/10.17072/1993-0550-2021-4-25-34.