1. HYPERCHEM for Windows: Release 4,1994
2. ALCHEMY III. Tripos Associates, St. Louis, Missouri 63117;
3. MOBY 1.4. Springer New Media, New York
4. NEMESIS V2.1 (Mac), Nemesis V2.0(PC),1994
5. CHEM-X, Chemical Design, Ltd., Roundway House, Cromwell Park, Chipping Norton, Oxon OX7 5SR, UK;