Ferrara, L., C. Sicignano, and D. Naviglio, et al. “Vanilla Planifolia Andr.: Un Aromatizzante Naturale Impiegato Nel Settore Alimentare, Farmaceutico E Cosmetico”. Progress in Nutrition 14, no. 2 (September 1, 2012): 144-151. Accessed February 28, 2020. https://www.mattioli1885journals.com/index.php/progressinnutrition/article/view/2345.