Manatbayev, R.K., A. Georgiev, R. Popov, D. Dzhonova-Atanasova, А.А. Kuikabayeva, and E.M. Zulbukharova. 2016. “The Effect of Design Parameters on Energy Characteristics of Darrieus Rotor”. International Journal of Mathematics and Physics 7 (1). https://ijmph.kaznu.kz/index.php/kaznu/article/view/167.