Kamila Tislerova and  Marta Zambochova,  Marketing Segmentation of Students Willing to Study Abroad based on Cluster Analysis.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2011, vol. 53(5). 526 - 530
    [viewed 20 January 2021]. Available from: https://publications.waset.org/pdf/12465.