Kalsbeek, F. (1993) “Use of Rb-Sr isotope data to constrain the time of deposition of Precambrian metasediments: an example from Hamborgerland, West Greenland”, Rapport Grønlands Geologiske Undersøgelse. Copenhagen, Denmark, 159, pp. 95–100. doi: 10.34194/rapggu.v159.8216.