Yershina, A.K., and Sh.A. Yershin. “About High Efficiency of Two-Rotor Wind Power Unit Bidarrieus-2”. Eurasian Physical Technical Journal 16, no. 1(31) (March 1, 2019): 82–87. Accessed March 20, 2026. https://phtj.buketov.edu.kz/EPTJ/article/view/454.