Voievidko І. В., Riznychuk А. І., Tokaruk В. В., and Piruh І. Ю. “Analysis of the Work of Steps Using the Eccentricity Limiter for Drilling Wells With a Diameter of 393,7 Mm”. Oil and Gas Power Engineering, no. 2(36), Dec. 2021, pp. 23-30, doi:10.31471/1993-9868-2021-2(36)-23-30.