Крижанівський, Є. І., Яким, Р. С., Шмандровський, Л. Є., & Петрина, Ю. Д. (2010). PROJECTED AND DESIGN-TECHNOLOGICAL MEASURES FOR THE GUARANTEE OF THE ENERGY SAVING AND QUALITY IN THE PROCESS OF TREE-CONE ROCK BITS MAKING. Oil and Gas Power Engineering, (1(12), 14–19. Retrieved from https://nge.nung.edu.ua/index.php/nge/article/view/90