Liubov Evstigneeva,  Determining the Direction of Causality between Creating Innovation and Technology Market.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2016, vol. 120(12). 3791 - 3796
    [viewed 17 May 2021]. Available from: https://publications.waset.org/pdf/10005814.