Walton, B. 1966. The relationship between relic pillow structures and zoned calc-silicate skarns, and the significance of talc balls in gneisses south of Frederikshåb. Rapport Grønlands Geologiske Undersøgelse. 11, (Jan. 1966), 38–39. DOI:https://doi.org/10.34194/rapggu.v11.7151.