Balabaev Оюм, Kulzhabaeva Айгул, Taishubekova Айгул, and Rakhimov Арман. 2023. “Determination of the Service Life of Deflecting Drums of Belt Conveyors”. Рroblems of Engineering and Professional Education 13 (3):20-26. https://doi.org/10.32523/2220-685X-2012-13-3-20-26.