Schlegel, P., Křehký, A., Havrdová, K., Dočkalová, D. and Pavlíková, T. (2023) “Trends in muscular fitness performance among 9-12-year-olds: implications for monitoring and test selection”, Pedagogy of Physical Culture and Sports, 27(4), pp. 312–320. doi: 10.15561/26649837.2023.0407.