Nazaruk, Stanislawa, et al. “PHYSICAL ACTIVITY OF CHILDREN IN PRE-SCHOOL AGE IN THE OPINION OF PARENTS AND TEACHERS FROM KINDERGARTENS IN UKRAINE”. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference, vol. 2, May 2018, pp. 613-22, https://doi.org/10.17770/sie2018vol1.3094.