GE, Chao; XIE, Jiaqi. Application of Grey Forecasting Model Based on Improved Residual Correction in the Cost Estimation of University Education. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 10, n. 8, p. pp. 30–33, 2015. DOI: 10.3991/ijet.v10i8.5215. Disponível em: https://online-journals.org/index.php/i-jet/article/view/5215. Acesso em: 6 may. 2024.