Higgins, A., & Friderichsen, J. (1979). Boundary relationships between pre-Caledonian and Caledonian lithostructural units in the East Greenland Caledonides 72°-74°N. Rapport Grønlands Geologiske Undersøgelse, 95, 87–90. https://doi.org/10.34194/rapggu.v95.7656