1. Singh, N.: Sport analytics: a review. Int. Technol. Manage. Rev. 9(1), 64–69 (2020)
2. Lange, D.: Brand value of top tier football leagues Europe 2020. https://www.statista.com/statistics/1024764/brand-value-top-tier-football-leagues-europe-by-country/. Accessed 04 Feb 2021
3. UEFA Football and Social Responsibility Report 2017/2018. https://www.uefa.com/MultimediaFiles/Download/uefaorg/General/02/60/26/72/2602672_DOWNLOAD.pdf. Accessed 04 Feb 2021
4. Brand, R., Schweizer, G., Plessner, H.: Conceptual considerations about the development of a decision-making training method for expert soccer referees. Nova Science (2009)
5. Gottschalk, C., Tewes, S., Niestroj, B.: The innovation of refereeing in football Through AI. Int. J. Innov. Econ. Dev. 6(2), 35–54 (2020)