Gorelova, J., S. Neustroev, E. Mindzaeva, S. Beshenkov, and A. Arinushkina. “Key Principles in Children’s Healthy Nutrition in Schools: A Cross-National Review”. Journal of History Culture and Art Research, vol. 8, no. 3, Sept. 2019, pp. 60-67, doi:10.7596/taksad.v8i3.2241.