Mingkai Wang Nana Chu Pranav Bhardwaj Shuguang Zhang Florian Holzapfel Minimum-Time Trajectory Generation of eVTOL in Low-Speed Phase: Application in Control Law Design. 1260-1275 2023 April 59 IEEE Trans. Aerosp. Electron. Syst. 2 https://doi.org/10.1109/TAES.2022.3198033 db/journals/taes/taes59.html#WangCBZH23