1. Ayalew, B., Kulakowski, B. T. (2006): Cascade tuning for nonlinear position control of an electrohydraulic actuator. In American control conference (p. 6).
2. Bradley, D. A., Seward, D. W. (1998): The development, control and operation of an autonomous robotic excavator. J. Intell. Robot. Syst., 21(1), 73–97.
3. Cheng, G., Shuangxia, P. (2008): Adaptive sliding mode control of electro-hydraulic system with nonlinear unknown parameters. Control Eng. Pract., 16(11), 1275–1284.
4. Ferreira, A., Bejarano, F. J., Fridman, L. M. (2011): Robust control with exact uncertainties compensation: with or without chattering? IEEE Trans. Control Syst. Technol., 19(5), 969–975.
5. Ha, Q. P., Nguyen, Q. H., Rye, D. C., Durrant-Whyte, H. F. (1999): Force and position control for electrohydraulic systems of a robotic excavator. In International symposium on automation and robotics in construction.