?url_ver=Z39.88-2004&rft_id=10.3390%2Fapp11157013&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=A.Z.&rft.au=Junejo%2C+A.Z.&rft.aulast=Junejo&rft.atitle=Empirical+evaluation+of+privacy+efficiency+in+blockchain+networks%3A+Review+and+open+challenges&rft.issue=15&rft.volume=11&rft.issn=20763417&rft.date=2021&rft.title=Applied+Sciences+(Switzerland)&rft.genre=article