Garnov, I. O., Loginova, T. P., Varlamova, N. G., Potolitsyna, N. N., Chernykh, A. A. and Bojko, E. R. (2021) “Functional state dynamics in cross-country skiers in the summer and autumn preparatory phase”, Pedagogy of Physical Culture and Sports, 25(3), pp. 152–159. doi: 10.15561/26649837.2021.0302.