METHODOLOGY FOR AUTOMATED APPROACH IN DETERMINING THE ROCK QUALITY DESIGNATION (RQD) INDEX FROM DRILL CORE PHOTOGRAPHS. Natural Resources and Technology, [S. l.], v. 15, n. 1, p. 27–36, 2021. DOI: 10.46763/NRT211510027a. Disponível em: https://js.ugd.edu.mk/index.php/NRT/article/view/4230. Acesso em: 5 may. 2026.