TY - JOUR T1 - The limitations of term co-occurrence data for query expansion in document retrieval systems JO - Journal of the American Society for Information Science PY - 1991/06/01 AU - Peat HJ AU - Willett P ED - DO - DOI: 10.1002/(SICI)1097-4571(199106)42:5<378::AID-ASI8> PB - Wiley Online VL - 42 IS - 5 SP - 378 EP - 383 Y2 - 2024/12/28 ER -