Zhang, Fu, Tianhua Chen, Shuai Teng, Jiajia Wang, Ruiliang Xu, and Zhijun Guo. 2021. “Model Construction for Field Operation Machinery Selection and Configuration in Wheat-Maize Double Cropping System”. International Journal of Agricultural and Biological Engineering 14 (4):82-89. https://www.ijabe.org/index.php/ijabe/article/view/6383.