?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=ZEUS+Collaboration%2C+The&rft.aufirst=The&rft.aulast=ZEUS+Collaboration&rft.atitle=Search+for+QCD-instanton+induced+events+in+deep+inelastic+ep+scattering+at+HERA&rft.volume=34&rft.date=2004&rft.pages=255-265&rft.issn=1434-6044&rft.title=The+European+Physical+Journal+C+-+Particles+and+Fields&rft.issue=3&rft.genre=article