Andrejko, Anton, and Mária Bieliková. “Comparing Instances of Ontological Concepts for Personalized Recommendation in Large Information Spaces”. Computing and Informatics 28, no. 4 (January 26, 2012): 429–452. Accessed November 23, 2024. http://147.213.75.17/ojs/index.php/cai/article/view/45.