Yitao, Liao, Wang Lei, and Liao Qingxi. “Design and Test of an Inside-Filling Pneumatic Precision Centralized Seed-Metering Device for Rapeseed”. International Journal of Agricultural and Biological Engineering 10, no. 2 (March 31, 2017): 56–62. Accessed December 26, 2025. https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/2061.