ROBISON, R. A. Trilobites of the Holm Dal Formation (late Middle Cambrian), central North Greenland. Meddelelser om Grønland. Geoscience, [S. l.], v. 20, p. 23–103, 1988. DOI: 10.7146/moggeosci.v20i.139888. Disponível em: https://tidsskrift.dk/meddrgroenland_geosci/article/view/139888. Acesso em: 20 may. 2024.