April 15, 2026 C. Chin, K. Gopalakrishnan, M. Egorov, A. Evans, H. Balakrishnan “Efficiency and Fairness in Unmanned Air Traffic Flow Management” IEEE Transactions on Intelligent Transportation Systems [15249050] 22.9 (2021): 5939-5951. Print. Share this 22.9 (2021): 5939-5951. Print."] Related Stories See all news Built to fly Flying at the edge of the stratosphere See all news