Wang, Ling, Yu Wang, Dong Dai, Xin Wang, and Shumao Wang. 2021. “Review of Electro-Hydraulic Hitch System Control Method of Automated Tractors”. International Journal of Agricultural and Biological Engineering 14 (3):1-11. https://ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/6175.