Gould, D., Pierce, S., Cowburn, I., Driska, A. Veröffentlicht in International Sport Coaching Journal (2017) “... a case study approach, in-depth interviews at several points in time with Robinson were conducted...”
Khodayari, A., Babaei Jafari, M., Asgari, B., Babaei Jafari, A. Veröffentlicht in International Journal of Wrestling Science (2014) “...interview...”