КРЯЧОК, О. С.; Блищик A. I. Representation of learning space ontology with the semantic web technologies. Problems of Informatization and Control, [S. l.], v. 1, n. 33, p. 82–85, 2011. DOI: 10.18372/2073-4751.1.9174. Disponível em: http://jrnl.kai.edu.ua/index.php/PIU/article/view/9174. Acesso em: 14 jun. 2026.