Kopystynskyy, Lev, Vitaliai Kropyvnytska, Andriy Lagoyda, and George Sementsov. “Analysis of Interrelations Between the Criteria of Optimal Control over the Process of Drilling the Wells”. Eastern-European Journal of Enterprise Technologies 2, no. 3 (86) (April 29, 2017): 40–50. Accessed May 7, 2024. https://journals.uran.ua/eejet/article/view/97934.