Ohapkin, Alexey, and Sergey Serokhvostov. “Optimization of Spar Mass and Fuselage Location to Decrease Loss of Airplane Lift Force”. Aviation 11, no. 3 (September 30, 2007): 21-25. Accessed December 23, 2024. https://transport.vilniustech.lt/index.php/Aviation/article/view/7046.