J. De Bruijn, A. Gomez, P. Melin, C. Loyola, V. Solar, H. Valdes, Effect of Doping Natural Zeolite with Copper and Zinc Cations on Ethylene Removal and Postharvest Tomato Fruit Quality, Chemical Engineering Transactions. 75 (2019) 265-270. doi:10.3303/CET1975045.