1. (a) Canich, J. A. M. (Exxon) U.S. Pat. 5,026,798, 1991.
2. (b) Canich, J. A. M. (Exxon) Eur. Pat. Appl. 0420 436 A1, 1991.
3. (c) Stevens, J. C.; Timmers, F. J.; Wilson, D. R.; Schmidt, G. F.; Nickias, P. N.; Rosen, R. K.; Knight, G. A.; Lai, S. Y. (Dow) Eur. Pat. Appl. 0416 815 A2, 1991.
4. (d) Canich, J. A. M. (Exxon) U.S. Pat. 5,096,867, 1992.
5. “Constrained Geometry” Dialkyl Catalysts. Efficient Syntheses, C−H Bond Activation Chemistry, Monomer−Dimer Equilibration, and α-Olefin Polymerization Catalysis