King, K. R. Julkaisussa International Journal of Sport Communication (2020)
P.l M. Pedersen, B. J. Ruihley, B. Li Julkaisussa Sport and the Pandemic. Perspectives on Covid-19's Impact on the Sport Industry (2020)
International Paralympic Committee Julkaistu 2020
Meier, H. E., Konjer, M., Nagm, A. Julkaisussa German Journal of Exercise and Sport Research (2017)