?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Djakona%2C+A.&rft.aulast=Djakona&rft.aufirst=A.&rft.issue=11&rft.volume=21&rft.date=2021&rft.atitle=Digital+technologies+and+rankings+as+tools+of+the+competitiveness+in+the+educational+services+market&rft.title=International+Journal+of+Computer+Science+and+Network+Security&rft.genre=article