O. Khanikiants, V. Konestyapin, O. Rymar, M. Yaroshyk, and N. Sorokolit, “THE APPLICATION OF ATHLETICS TOOLS IN DUE TO DEVELOP SPEED OF SECONDARY SCHOOL CHILDREN”, SIE, vol. 2, pp. 283–291, May 2021, doi: 10.17770/sie2021vol2.6224.