Franco, A.L.D., De Pieri, E.R., Castelan, E.B., Guenther, R. and Valdiero, A.C. 2004. DESIGN AND EXPERIMENTAL EVALUATION OF POSITION CONTROLLERS FOR HYDRAULIC ACTUATORS: BACKSTEPPING AND LQR-2DOF CONTROLLERS. International Journal of Fluid Power. 5, 3 (Nov. 2004), 39–48.