?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Ta%C5%9Fa%C4%9Fil&rft.aufirst=Ahmet&rft.au=+Ta%C5%9Fa%C4%9Fil+Ahmet&rft.volume=7-8&rft.issn=1588-2039&rft.pages=242-248&rft.title=Chronica&rft.atitle=The+tribal+system+of+the+Turk+Khaganate&rft.date=2008&rft.genre=article