Яким РС. BASIC PRINCIPLES OF CONSTRUCTION IMPROVEMENT OF THE INSERTED HARD-FENCING ALLOYED EQUIPMENT OF THREE-CONE ROCK BITS. ogpe [Internet]. 2011 Mar. 30 [cited 2024 May 4];(1(14):22-8. Available from: https://nge.nung.edu.ua/index.php/nge/article/view/132