A. I. Sifat and M. A. Elahi, “Elasticity-Driven Fare Optimization in U.S. Air Travel Segments”, Chall. issue mod. sci., vol. 4, no. 1, Jun. 2025, Accessed: Feb. 17, 2026. [Online]. Available: https://cims.fti.dp.ua/j/article/view/316