Liping, Chen, Zhao Chunjiang, Chen Tian'en, Wang Jihua, Liu Zhenyan, and Hu Jing. “Spatial Interpolation of Soil Nutrients Using Algebra Hyper-Curve Neural Network”. International Journal of Agricultural and Biological Engineering 1, no. 1 (September 5, 2008): 51–56. Accessed February 27, 2026. https://ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/11.