Singh, K., Singh, R. J. Julkaisussa From High-risk Sports to Sports as High Risk: Crisis, Captulation and Creativity during COVID-19 (2020)
Meier, H. E., Konjer, M., Leinwather, M. Julkaisussa European Sport Management Quarterly (2016)
Deutscher Bundestag Julkaisussa Parlamentsdrucksachen (2010)