1.Hung NV, L. Gerbaud, R. Souchal, C. Urbanczyk, Fouchard C. Penetration rate prediction for percussive drilling with rotary in very hard rock. Vietnam J. Sci. Technol. [Internet]. 2016 Feb. 20 [cited 2026 Jan. 10];54(1):133-49. Available from: https://vjs.ac.vn/jst/article/view/5956