Expanding End-Users' Query Statements for Free Text Searching with a Search-Aid Thesaurus. - Jaana Kristensen (Inf. Process. Manag., 1993)

A Deductive Data Model for Query Expansion. - Kalervo Järvelin; Jaana Kristensen; Timo Niemi; Eero Sormunen; Heikki Keskustalo (SIGIR, 1996)