@article{KadlubowskiKeinerHartmannetal.2019,
  author    = {Bj{\"o}rn Kadlubowski and Michael Keiner and Hagen Hartmann and Klaus Wirth and Ulrich Frick},
  title     = {The relationship between change of direction tests in elite youth soccer players},
  journal   = {Sports},
  volume    = {7},
  number    = {5, Art. 111},
  pages     = {1 -- 8},
  doi       = {10.3390/sports7050111},
  year      = {2019},
}