?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Chen+%2C+YM&rft.aulast=Chen+&rft.aufirst=YM&rft.issue=2&rft.volume=159&rft.date=1984&rft.issn=0021-9193&rft.atitle=Constitutive+activation+of+L-fucose+genes+by+an+unlinked+mutation+in+Escherichia+coli&rft.title=Journal+of+bacteriology&rft.genre=article