TY - JOUR T1 - Computer Storage and Retrieval of Generic Chemical Structures in Patents. 12. Principles of Search Operations Involving Parameter Lists: Matching-Relations, User-Defined Match Levels, and Transition from the Reduced Graph Search to the Refined Search JO - Journal of Chemical Information and Computer Sciences UR - http://eprints.whiterose.ac.uk/9242/ PY - 1991/05/01 AU - Dethlefsen W AU - Lynch MF AU - Gillet VJ AU - Downs GM AU - Holliday JD AU - Barnard JM ED - DO - DOI: 10.1021/ci00002a010 VL - 31 IS - 2 SP - 253 EP - 260 Y2 - 2024/12/22 ER -