Jürgens, D., B. Knechtle, C. A. Rüst, P. Knechtle, T. Rosemann, and R. Lepers. “An Analysis of Participation and Performance by Nationality at ‘Ironman Switzerland’ from 1995 to 2011”. Journal of Science and Cycling, vol. 1, no. 2, Dec. 2012, pp. 10-20, https://jsc-journal.com/index.php/JSC/article/view/11.