Nikolaos Sariannidis and  Grigoris Giannarakis and  Nikolaos Litinas and  Nikos Kartalis,  Empirical Analyses of Determinants of D.J.S.I.US Mean Returns.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2009, vol. 30(6). 885 - 890
    [viewed 12 April 2021]. Available from: https://publications.waset.org/pdf/4876.