Kovalovs, Andrejs, Evgeny Barkanov, and Sergejs Gluhihs. “Numerical Optimization of Helicopter Rotor Blade Design for Active Twist Control”. Aviation 11, no. 3 (September 30, 2007): 3-9. Accessed November 25, 2024. https://transport.vgtu.lt/index.php/Aviation/article/view/7039.