ALBRECHT-ZAGAR, P. .; SCHEIDL, R. . A Piezo-Electric Valve Actuator for Hydraulic Exoskeleton Drives. International Journal of Fluid Power, [S. l.], v. 23, n. 03, p. 453–468, 2022. DOI: 10.13052/ijfp1439-9776.23310. Disponível em: https://journals.riverpublishers.com/index.php/IJFP/article/view/18529. Acesso em: 4 may. 2024.