Xu, Dan, and Hualing Deng. “Application of Projection Pursuit Regression in the Forecast of the Percentage of Damaged Seeds of Leguminivora Glycinivorella”. Advances in Systems Science and Applications, vol. 12, no. 1, Mar. 2012, pp. 12-17, https://ijassa.ipu.ru/index.php/ijassa/article/view/85.