Tabacchi G., Filippi A. R., Breda J., Censi L., Amodio E., Napoli G., Bianco A., Jemni M., Firenze A., and Mammina C. “Comparative Validity of the ASSO - Food Frequency Questionnaire for the Web-Based Assessment of Food and Nutrients Intake in Adolescents”. Food & Nutrition Research, vol. 59, Apr. 2015, doi:10.3402/fnr.v%v.26216.