Ji, Jiangtao, Jingwei Sun, Xin Jin, Mingyong Li, and Xinwu Du. 2019. ā€œDevelopment of a PVDF Sensor for Potted Seedling Clamping Force of Vegetable Transplantingā€. International Journal of Agricultural and Biological Engineering 12 (5):111-18. https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/5094.