Campsie , J., M. H. Rasmussen, L. C. Kovacs, F. Dittmer, J. C. Bailey, N. O. Hansen, J. Laursen, and L. Johnson. “Chronology and Evolution of the Northern Iceland Plateau”. Polar Research, vol. 8, no. 2, Jan. 1990, pp. 237-43, doi:10.3402/polar.v8i2.6814.