Grosse G., Schirrmeister L., and Malthus T. J. “Application of Landsat-7 Satellite Data and a DEM for the Quantification of Thermokarst-Affected Terrain Types in the Periglacial Lena–Anabar Coastal Lowland”. Polar Research, vol. 25, no. 1, Jan. 2006, pp. 51-67, doi:10.3402/polar.v25i1.6238.