Ivashchenko, O., Y. Skochko, J. Skrobecki, and K. Wnorowski. “Pattern Recognition: Features of Motor Fitness of 9-Year-Old Schoolchildren”. Journal of Learning Theory and Methodology, vol. 3, no. 2, June 2022, pp. 59-64, doi:10.17309/jltm.2022.2.02.