H. Ashley, L. Lehman, and J. Nathman, “The Constructive Uses of Aeroelasticity”, Eng. Trans., vol. 30, no. 3-4, pp. 369–396, Dec. 1982, Accessed: Apr. 24, 2025. [Online]. Available: https://et3.ippt.pan.pl/index.php/et/article/view/1985