Ruoranen, Kaisa, Josephine Clausen, Siegfried Nagel, Grazia Lang, Christoffer Klenk, David Giauque, Emmanuel Bayle, and Torsten Schlesinger. “Causes for Professionalization in National Sport Federations in Switzerland: A Multiple-Case Study”. Current Issues in Sport Science (CISS) 3 (February 8, 2018): 003. Accessed August 18, 2022. https://ciss-journal.org/article/view/7569.