LUU THI, H. Performance Enhancement in Double-Pendulum Overhead Crane Control: A Fixed-Time Extended State Observer-Based Approach. Engineering, Technology & Applied Science Research, Greece, v. 15, n. 6, p. 30452–30461, 2025. DOI: 10.48084/etasr.14777. Disponível em: https://etasr.com/index.php/ETASR/article/view/14777. Acesso em: 1 may. 2026.