1. PubMed and beyond: a survey of web tools for searching biomedical literature.;Z Lu;Database (Oxford),2011
2. Enriching PubMed Related Article Search with Sentence Level Co-citations.;N Tran;AMIA Annu Symp Proc,2009
3. PubMed related articles: a probabilistic topic-based model for content similarity.;J Lin;BMC Bioinformatics,2007
4. Context-aware citation recommendation.;Q He,2010
5. Problems of citation analysis: A study of uncited and seldom-cited influences.;MH MacRoberts;Journal of the American Society for Information Science and Technology,2010