Braithwaite, R.J, and M Laternser. 1993. “Measurements of Firn Density in the Lower Accumulation Area of the Greenland Ice Sheet: EPOCH 1992”. Rapport Grønlands Geologiske Undersøgelse 159 (January). Copenhagen, Denmark:62-65. https://doi.org/10.34194/rapggu.v159.8210.