Gluhihs, Sergejs, and Andrejs Kovalovs. “Reduction of the Vibration in a Helicopter Blade Using Piezoelectric Actuators”. Aviation 10, no. 2 (June 30, 2006): 3-6. Accessed November 10, 2024. https://transport.vgtu.lt/index.php/Aviation/article/view/7385.