Lenzi, A., A. Baldi, and R. Tesi. “Growing Spinach in a Floating System With Different Volumes of Aerated or Non-Aerated Nutrient Solution”. Advances in Horticultural Science 25, no. 1 (May 10, 2013): 21–25. Accessed May 15, 2024. https://oaj.fupress.net/index.php/ahs/article/view/2935.