V.V. Mykhailiuk, B.V. Kopey, M.M. Liakh, Yu.M. Liakh,. “Development of Non-Marking Tubular Holding Equipment”. JOURNAL OF HYDROCARBON POWER ENGINEERING, vol. 4, no. 1, June 2018, pp. 18-25, https://ogpe.nung.edu.ua/index.php/jhpe/article/view/47.