Miller , G. H., H. P. Sejrup, S. J. Lehman, and S. L. Forman. “The Last Glacial-Interglacial Cycle, Western Spitsbergen, Svalbard Archipelago”. Polar Research, vol. 5, no. 3, Jan. 1987, pp. 279-80, doi:10.3402/polar.v5i3.6887.