Open AccessHygienic aspects of classes with children of primary school age in sports and health improvement groups for cross-country skiing
Author(s) -
Zhana Toma,
O Grigorieva,
E Mironova
Publication year - 2019
Language(s) - English
Resource type - Conference proceedings
DOI - 10.2991/icistis-19.2019.70
Subject(s) - cross country , age groups , primary (astronomy) , psychology , sociology , demography , demographic economics , physics , astronomy , economics