?url_ver=Z39.88-2004&rft_id=10.1088%2F1751-8113%2F40%2F33%2F011&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=King%2C+RC&rft.aulast=King&rft.aufirst=RC&rft.issue=33&rft.volume=40&rft.date=17+August+2007&rft.issn=1751-8113&rft.atitle=The+mixed+two-qubit+system+and+the+structure+of+its+ring+of+local+invariants&rft.title=Journal+of+Physics+A%3A+Mathematical+and+Theoretical&rft.pages=10083-10108&rft.genre=article