Redefining a Thesaurus: Term-Centric No More. - Douglas Johnston; Stuart J. Nelson; Jacque-Lynne A. Schulman; Allan G. Savage; Tammy Powell (AMIA, 1998)

Making the Marriage: Reconciling Views of Concepts and Meaning in MeSH and the UMLS Metathesaurus. - Stuart J. Nelson; Douglas Johnston; Tammy Powell; William T. Hole (AMIA, 2001)

A semantic normal form for clinical drugs in the UMLS: early experiences with the VANDF. - Stuart J. Nelson; Steven H. Brown; Mark Erlbaum; Nels Olson; Tammy Powell; Brian Carlsen; John S. Carter; Mark S. Tuttle; William T. Hole (AMIA, 2002)

Tracking meaning over time in the UMLS Metathesaurus. - Tammy Powell; Suresh Srinivasan; Stuart J. Nelson; William T. Hole; Laura Roth; Vladimir Olenichev (AMIA, 2002)

Conversion of MeSH® SCRs to Concept Structure. - Caroline Ridley; Timothy Dugan; Wayne Matten; James M. Pash; Tammy Powell (AMIA, 2002)

Research Paper: Integrating SNOMED CT into the UMLS: An Exploration of Different Views of Synonymy and Quality of Editing. - Kin Wah Fung; William T. Hole; Stuart J. Nelson; Suresh Srinivasan; Tammy Powell; Laura Roth (J. Am. Medical Informatics Assoc., 2005)

Normalized names for clinical drugs: RxNorm at 6 years. - Stuart J. Nelson; Kelly Zeng; John Kilbourne; Tammy Powell; Robin Moore (J. Am. Medical Informatics Assoc., 2011)