Vlachou, V. , Kontzinos, C. , Markaki, O. , Kokkinakos, P. , Karakolis, V. , Psarras, J. (2020). 'Leveraging Hyperledger Iroha for the Issuance and Verification of Higher-Education Certificates'. World Academy of Science, Engineering and Technology, Open Science Index 165, International Journal of Educational and Pedagogical Sciences, 14(9), 755 - 763.