Alexiou Dimitra and  Fragkaki Maria,  Data and Spatial Analysis for Economy and Education of 28 E.U. Member-States for 2014.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2016, vol. 120(12). 3797 - 3801
    [viewed 09 May 2024]. Available from: https://publications.waset.org/pdf/10005816.