1. Experiments on a snow-patch in the mountains of Sweden;Ashweli;J. Glaciology,1966
2. Dirt polygons on snow;Ball;Weather,1954
3. Snow polygons;Chuter;Ibid.,1959
4. Glaciology and glacial geology on Deception Island;Klay;Antarctic J. of the United States,1969
5. Dirt polygons;Richardson;Weather,1954