STRADZE, A. E.; PUSHKINA, V. N.; FEDOROVA, E. Y.; GERNET , I. N.; SIZOV, A. E.; EMELIANOV, A. V. Study of school child motor activity using individual wearable devices - fitness-trackers. Religación, v. 4, n. 20, p. 138-143, 30 Oct. 2019.