Progress Report, December 1, 1989 -- November 30, 1992 '', Department of Chemistry at the Massachusetts Institute of Technology -LRB- MIT -RRB-, United States Department of Energy, -LRB- 1992 -RRB-.
Progress Report, 1er décembre 1992 - 30 novembre 1993 '', Massachusetts Institute of Technology -LRB- MIT -RRB-, United States Department of Energy, -LRB- December 1993 -RRB-.