Jianming, Zheng, Xiao Min, Yang Mingshun, Li Yan, and Kong Lingfei. “BP-PID Control for Electro-Hydraulic Proportional Position Servo System”. International Journal of Online and Biomedical Engineering (iJOE) 9, no. 3 (June 11, 2013): pp. 40–44. Accessed November 22, 2024. https://online-journals.org/index.php/i-joe/article/view/2602.