Divine, D., Isaksson, E., Martma, T., Meijer, H. A., Moore, J., Pohjola, V., van de Wal, R. S. and Godtliebsen, F. (2011) “Thousand years of winter surface air temperature variations in Svalbard and northern Norway reconstructed from ice core data”, Polar Research, 00. doi: 10.3402/polar.v30i0.7379.