1. Anderson, E.A. 1976.A point energy and mass balance model of a snow cover, NOAA Technical Report NWS 19 150Silver Springs, MD: National Oceanic and Atmospheric Administration.
2. Informal Report No. 12/1999,1999
3. The Rain versus Snow Threshold Temperatures
4. Diamond, M. and Lowry, W.P. 1953.Correlation of density of new snow with 700 mb temperature, Research Paper 1 3Snow, Ice and Permafrost Research Establishment, US Army Corps of Engineers.