1. Armstrong R, Brodzik MJ (2005) Northern hemisphere EASE-grid weekly snow cover and sea ice extent version 3. National Snow and Ice Data Center, Boulder
2. Armstrong T, Roberts B, Swithinbank C (1973) Illustrated glossary of snow and ice. Scott Polar Research Institute, Cambridge
3. Barlow NG, Allen RA, Vilas F (1999) Mercurian impact craters: implications for polar ground ice. Icarus 141:194–204
4. Bates HH (1894) The chemical constitution of Mars’ atmosphere. Publ Astron Soc Pac 6(38):300
5. Bentley CR, Thomas RH, Velicogna I (2007) Ice sheets. In: Global outlook for ice and snow., Ed: Eamer J. United Nations Environment Programme