TY - JOUR T1 - Document-retrieval Experiments Using Indexing Vocabularies of Varying Size. 1. Variety Generation symbols Assigned to the Fronts of Index Terms JO - Journal of Documentation PY - 1979/01/01 AU - Burnett JE AU - Cooper D AU - Lynch MF AU - Willett P AU - Wycherley M ED - DO - DOI: 10.1108/eb026680 PB - Emerald Group Publishing Limited VL - 35 IS - 3 SP - 197 EP - 206 Y2 - 2024/12/28 ER -