Sønderholm, M., Harland, T., Due, P., Jørgensen, L. and Peel, J. 1987. Lithostratigraphy and depositional history of Upper Ordovician - Silurian shelf carbonates in central and western North Greenland. Rapport Grønlands Geologiske Undersøgelse. 133, (Dec. 1987), 27–40. DOI:https://doi.org/10.34194/rapggu.v133.7973.