TY - GEN AU - AU - ED - United States. ED - United States. ED - United States. TI - Computer-aided industrial process design, the aspen project: functional specifications for Aspen U1 - US 665.772 23rd ed. PY - 1977/// CY - Washington DC PB - U. S. Dept. of Energy KW - Coal gasification KW - Mathematical models KW - Industrial management N1 - MIT-2295T9-7; 6th quarterly progress report, appendix 1 ER -