“Effects of Environmental Factors on Carotenoid Content in Tomato (Lycopersicon Esculentum (L.) Mill.) Grown in a Greenhouse”. Journal of Applied Botany and Food Quality, vol. 80, no. 2, Dec. 2012, pp. 160-4, https://test.ojs.openagrar.de/index.php/JABFQ/article/view/2177.