1. Knowledge organization in an information retrieval task;Allen;Information Processing & Management,1990
2. Cognitive differences in end-user searching of a CD-ROM index;Allen,1992
3. Reliability and validity assessment;Carmines,1979
4. Librarian subject searching in online catalogs: An exploratory study of knowledge used;Connell,1991
5. The design of usable IT products: The ESPRIT/HUFIT approach;Eason,1987