Чигур, Л. Я. “INFORMATION MODEL OF PDF TYPE DRILL BITS TECHNICAL CONDITION CONTROL AND B-CRITERION OF DECISION MAKING”. Oil and Gas Power Engineering, no. 1(14) (May 10, 2011): 85–90. Accessed November 21, 2024. https://nge.nung.edu.ua/index.php/nge/article/view/168.