Jinqing, Lü, Yang Ying, Li Zihui, Shang Qinqin, Li Jicheng, and Liu Zhongyuan. 2016. “Design and Experiment of an Air-Suction Potato Seed Metering Device”. International Journal of Agricultural and Biological Engineering 9 (5):33-42. https://ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/2221.