Hui, Yang, et al. “Evaluation of Tomato Fruit Quality Response to Water and Nitrogen Management under Alternate Partial Root-Zone Irrigation”. International Journal of Agricultural and Biological Engineering, vol. 10, no. 5, Sept. 2017, pp. 85-94, https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/2622.