?url_ver=Z39.88-2004&rft_id=10.1002%2Fchir.20468&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Wipf%2C+P&rft.aulast=Wipf&rft.aufirst=P&rft.issue=3-4&rft.volume=20&rft.date=3+March+2008&rft.issn=0899-0042&rft.atitle=Chiral+ligand+optimization+in+the+asymmetric+zirconium-zinc+transmetalation+aldehyde+addition+reaction&rft.title=Chirality&rft.pages=425+-+430&rft.genre=article