@article{heinsoo_mäestu_2014, 
  title={The subjective assessment of training load in the training process of young skiers}, 
  volume={20}, 
  DOI={10.12697/akut.2014.20.06}, 
  publisher={University of Tartu Press}, 
  author={Heinsoo and Mäestu}, 
  year={2014}, 
  month={Dec}
  }