1. Some passive methods of controlling geocryological conditions in roadway construction;Berg,1973
2. Effect of embankment fills on the permafrost table;Cheng,1983
3. The critical value of mean annual air temperature—an important factor for designing the critical height of embankment in permafrost regions of the Tibetan Plateau;Ding;Journal of Glaciology and Geocryology,2000
4. An approximate calculation for estimating the influences of various environmental factors to ground temperature regime;Ershov;Permafrost Research,1971
5. Control of permafrost degradation beneath a roadway by subgrade insulation;Esch,1973