Popov, Viktor, Vasiliy Loginov, Yevgen Ukrainets, Volodymyr Shmyrov, Petro Steshenko, and Pavlo Hlushchenko. “Improving Aircraft Fuel Efficiency by Using the Adaptive Wing and Winglets”. Eastern-European Journal of Enterprise Technologies 2, no. 1 (104) (April 30, 2020): 51–59. Accessed November 22, 2024. https://journals.uran.ua/eejet/article/view/200664.