Fu, Guohai, et al. “Improved Root Zone Temperature Buffer Capacity Enhancing Sweet Pepper Yield via Soil-Ridged Substrate-Embedded Cultivation in Solar Greenhouse”. International Journal of Agricultural and Biological Engineering, vol. 11, no. 2, Mar. 2018, pp. 41-47, https://www.ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/2679.