Adil Kadyrov, Zhanara Zhunusbekova, Aleksandr Ganyukov, Irina Kadyrova, and Aliya Kukesheva. “General Characteristics for Loading the Working Elements of Drilling and Milling Machines When Moving in the Clay Solution”. Communications - Scientific Letters of the University of Zilina, Vol. 23, no. 2, Apr. 2021, pp. B97-B105, doi:10.26552/com.C.2021.2.B97-B105.