?url_ver=Z39.88-2004&rft_id=3143287&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Ilkei&rft.aufirst=Viktor&rft.au=+Ilkei+Viktor&rft.title=BEILSTEIN+JOURNAL+OF+ORGANIC+CHEMISTRY&rft.pages=2523-2534&rft.date=2016&rft.atitle=Biomimetic+synthesis+and+HPLC%E2%80%93ECD+analysis+of+the+isomers+of+dracocephins+A+and+B&rft.volume=12&rft.issn=1860-5397&rft.genre=article