Quanwei, Liu, He Xiantao, Yang Li, Zhang Dongxing, Cui Tao, Qu Zhe, Yan Bingxin, Wang Mantao, and Zhang Tianliang. 2017. “Effect of Travel Speed on Seed Spacing Uniformity of Corn Seed Meter”. International Journal of Agricultural and Biological Engineering 10 (4):98-106. https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/2675.