Speed Control of Hydraulic Elevator by Using Electro-Hydraulic Servo Mechanism. Journal of University of Babylon for Engineering Sciences, [S. l.], v. 27, n. 4, p. 275–291, 2019. Disponível em: https://journalofbabylon.com/index.php/JUBES/article/view/2798. Acesso em: 16 apr. 2025.