1. American Society of Civil Engineers (2003) "Minimum Design Loads for Buildings and Other Structures " ASCE 7-02 New York NY
2. American Society of Civil Engineers (2006) "Minimum Design Loads for Buildings and Other Structures " ASCE 7-05 New York NY
3. A Climatological Measure of Extreme Snowdrift Loading on Building Roofs
4. Derjue J. (2002) "Laboratory Studies of Snow Drifts on Gable Roofs " Masters Thesis Rensselaer Polytechnic Institute Troy NY August 113 pp.