U.B.Imomqulov, M.H.Imomov, X.X.Akbaraliyev, U.A.Nabijonov, and M.M.Mirzaabdullayev, “SUBSTANTIATION ANGLE OF INCIDENCE OF THE DEVICE WITH A CHANGING CURVILINEAR SURFACE TO THE DRUM”, IJIE, vol. 3, no. 12, pp. 481-483, Dec. 2020.