Chudyk, I., A. Livinskyi, A. Al Tanakchi, and A. Pastuch. “THE APPLICATION FEATURES OF DIRECTIONAL BHAS WHILE DRILLING DIRECTIONAL WELLS”. Prospecting and Development of Oil and Gas Fields, no. 1(70), Mar. 2019, pp. 17-24, doi:10.31471/1993-9973-2019-1(70)-17-24.