Event-Trigger-Based Adaptive Barrier Function Higher-Order Global Sliding Mode Control Technique for Quadrotor UAVs. - Bowen Liu; Yingxun Wang; Mohammadreza Askari Sepestanaki; Mohsen Pouzesh; Saleh Mobayen; Seyed Hossein Rouhani; Afef Fekih (IEEE Trans. Aerosp. Electron. Syst., 2024)