Lieberman, Bruce S.2008-05-012008-05-012004-08-261046-8390https://hdl.handle.net/1808/376523 p., 19 fig., 2 tablesen-USRevised Biostratigraphy, Systematics, and Paleobiogeography of the Trilobites from the Middle Cambrian Nelson Limestone, AntarcticaArticle10.17161/PCNS.1808.3765openAccess