1. For a recent review see;Wulff;Organometallics,1998
2. The theoretical calculations are currently in progress Reuben Institute of Chemistry Academia;Hwu;Prof Taiwan
3. In Comprehensive Organomet Chemistry II eds Pergamon;Wulff;pp,1995
4. a;Brenna;Tetrahedron Asymmetry Organomet Chem Organometallics Chem Lett,1997