Dunay, A., A. Kovács, C. B. Illés, A. Tóth, and A. Bittsánszky. “Food Allergy and Food Intolerance Knowledge of Foodservice Workers in Hungarian Schools”. Potravinarstvo Slovak Journal of Food Sciences, vol. 13, no. 1, May 2019, pp. 318-24, doi:10.5219/1111.