Idzikowski, W. “Prezentacja Marki Osobistej Sportowca I Dostarczanie wartości Dla Sponsora = Presentation of the athlete’s Personal Brand and Delivering Value to the Sponsor”. Journal of Education, Health and Sport, vol. 6, no. 9, Sept. 2016, pp. 185-96, https://apcz.umk.pl/JEHS/article/view/3809.