Bazzoffi, Paolo, and Lorenzo Gardin. “Effectiveness of the GAEC Standard of Cross Compliance Retain Terraces on Soil Erosion Control”. Italian Journal of Agronomy 6, no. s1 (August 12, 2011): e6. Accessed August 4, 2020. https://www.agronomy.it/index.php/agro/article/view/ija.2011.6.s1.e6.