Jinwu, Wang, Tang Han, Wang Jinfeng, Li Xin, and Huang Huinan. “Optimization Design and Experiment on Ripple Surface Type Pickup Finger of Precision Maize Seed Metering Device”. International Journal of Agricultural and Biological Engineering 10, no. 1 (January 23, 2017): 61–71. Accessed January 27, 2026. https://ijabe.org/index.php/ijabe/article/view/2050.