Velichko, V. I., et al. “Оценка состояния питания и пищевого статуса детей раннего возраста южного региона = Assessment of the Nutrition Status of Infants in South Region”. Journal of Education, Health and Sport, vol. 6, no. 11, Feb. 2017, pp. 548-56, https://apcz.umk.pl/JEHS/article/view/4042.