@article{ZinnerSperlichWahletal.2015,
  author    = {Christoph Zinner and Billy Sperlich and Patrick Wahl and Joachim Mester},
  title     = {Classification of selected cardiopulmonary variables of elite athletes of different age, gender, and disciplines during incremental exercise testing},
  journal   = {SpringerPlus},
  volume    = {4},
  number    = {544},
  doi       = {10.1186/s40064-015-1341-8},
  year      = {2015},
}