Stephen Blott Cathal Gurrin Gareth J. F. Jones Alan F. Smeaton Thomas Sødring On the Use of MeSH Headings to Improve Retrieval Effectiveness. 215-224 2003 TREC http://trec.nist.gov/pubs/trec12/papers/dublin-cityu.genomic.ps db/conf/trec/trec2003.html#BlottGJSS03