Evaluating topic models for digital libraries. - David Newman 001; Youn Noh; Edmund M. Talley; Sarvnaz Karimi; Timothy Baldwin (JCDL, 2010)

Are learned topics more useful than subject headings. - Youn Noh; Katrina Hagedorn; David Newman 001 (JCDL, 2011)

A New Way to Find: Testing the Use of Clustering Topics in Digital Libraries. - Kat Hagedorn; Michael Kargela; Youn Noh; David Newman 001 (D Lib Mag., 2011)

Learning topics and related passages in books. - David Newman 001; Youn Noh; Kat Hagedorn; Arun Balagopalan (JCDL, 2012)