?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Farag%C3%B3&rft.aufirst=Csaba&rft.au=+Farag%C3%B3+Csaba&rft.pages=35-56&rft.atitle=Variance+of+source+code+quality+change+caused+by+version+control+operations&rft.date=2015&rft.issue=1&rft.volume=22&rft.title=Acta+cybernetica&rft.issn=0324-721X&rft.genre=article