Brief Communication Adjacency and proximity searching in the Science Citation Index and Google. - Ronald N. Kostoff; John T. Rigsby; Ryan B. Barth (J. Inf. Sci., 2006)

Relation of seminal nanotechnology document production to total nanotechnology document production - South Korea. - Ronald N. Kostoff; Ryan B. Barth; Clifford G. Y. Lau (Scientometrics, 2008)