GRABUSTS, Peter. The Concept of Ontology for Numerical Data Clustering. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 2, p. 11–16, 2015. DOI: 10.17770/etr2013vol2.848. Disponível em: https://journals.ru.lv/index.php/ETR/article/view/848.. Acesso em: 14 jun. 2024.