Jepsen, H. 1969. Preliminary report on the stratigraphy of the Precambrian and Eocambrian sediments in the Jørgen Brønlund Fjord – Midsommersø area, southern Peary Land. Rapport Grønlands Geologiske Undersøgelse. 19, (Jan. 1969), 11–14. DOI:https://doi.org/10.34194/rapggu.v19.7189.