Ashcheulov, Aleksandr, and Evgeniia Kharlamova. “On the Effectiveness of the Improvement of the Top Drive Systems of Drilling Rigs for Rotary Steerable Systems”. International Journal of Engineering & Technology, vol. 7, no. 4.28, Nov. 2018, pp. 1570-3, https://doi.org/10.14419/ijet.v7i4.28.28495.