1. D.W. Studer, D.M. Brown, J.L. Henderson, T.H. Hsiung, Status of the development of methanol synthesis by the LPMEOH process, DOE Indirect Liquefaction Contractors' Review Meeting, Pittsburgh, 13?15 November 1989.
2. B.L. Bhatt, D.M. Herron and E.C. Heydorn, Development and demonstration of a one-step slurry-phase process for the coproduction of dimethyl ether and methanol, DOE Liquefaction Contractors' Review Meeting, Pittsburgh, 3?5 September 1991.
3. T.H. Hsiung, D.M. Herron, E.C. Heydorn and E.S. Schaub, Demonstration of a slurry-phase shift process at the LaPorte AFDU, DOE Liquefaction Contractors' Review Conference, Pittsburgh, 22?24 September 1992.
4. P.A. Armstrong, B.L. Bhatt, E.C. Heydorn and B.A. Toseland, Isobutanol dehydration: a key step in producing MTBE from syngas, DOE Liquefaction and Gas Conversion Contractors' Review Conference, Pittsburgh, 27?29 September 1993.
5. P.J.A. Tijm, H.M.H.V. Wechem and M.M.G. Senden, The Shell middle distillate synthesis project ? new opportunities for marketing natural gas, Alternate Energy '93, Colorado Springs, 27?30 April 1993.