Garnov IO, Loginova TP, Varlamova NG, Potolitsyna NN, Chernykh AA, Bojko ER. Functional state dynamics in cross-country skiers in the summer and autumn preparatory phase. Pedagogy of Physical Culture and Sports. 2021;25(3):152-9. https://doi.org/10.15561/26649837.2021.0302