ADJISKI, V.; PANOV, Z.; ZLATKOV, G.; POPOVSKI, R.; KARANAKOVA STEFANOVSKA, R. METHODOLOGY FOR AUTOMATED APPROACH IN DETERMINING THE ROCK QUALITY DESIGNATION (RQD) INDEX FROM DRILL CORE PHOTOGRAPHS. Natural Resources and Technology, v. 15, n. 1, p. 27-36, 7 Jun. 2021.