Dehkanov, U. G. ., Z. S. . Makhmudov, and Q. S. . Azamov. “Practical Equation of Torque for a Concave Wing Rotor Drive”. Web of Scholars: Multidimensional Research Journal, vol. 1, no. 6, Oct. 2022, pp. 230-4, doi:10.17605/OSF.IO/UNBMP.