Braithwaite, R., Pfeffer, W., Blatter, H. and Humphrey, N. (1992) “Meltwater refreezing in the accumulation area of the Greenland ice sheet: Pâkitsoq, summer 1991”, Rapport Grønlands Geologiske Undersøgelse. Copenhagen, Denmark, 155, pp. 13–17. doi: 10.34194/rapggu.v155.8172.