Calzuola, I., S. Perni, G.A.M. Caprara, G.L. Gianfranchi, and V. Marsili. 2013. “A Comparative Study of the Antioxidant Activity of Rice, Wheat and Spelt”. Progress in Nutrition 15 (3): 194-205. https://mattioli1885journals.com/index.php/progressinnutrition/article/view/3317.