Cipora, E., E. Smoleń, H. Piecewicz, J. Sobieszczański, W. Zukow, and A. Sobieszczańska. “Nutritional Behaviours Of Adolescents Living In Rural Areas. Part 2. Characteristic Of Pro-Health Behaviour In Aspect Of Frequency Of Consuming Meals And Selected Foodstuff”. Journal of Education, Health and Sport, vol. 6, no. 13, Dec. 2016, pp. 334-48, https://apcz.umk.pl/JEHS/article/view/4400.