WASET
    B. Schmid and  C. Kexel and  E. Djafarova,  Multidimensional Sports Spectators Segmentation and Social Media Marketing.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2016, vol. 116(8). 2683 - 2686
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10005081.