1. An Engineering Proposal for a Frazil Recorder;Ford,1982
2. Frazil - the invisible strangler;Foulds;J. Am. Water Works Assoc.,1977
3. The Occurrance and Prevention of Frazil Ice Blockage at Water Supply Intakes;Giffen,1973
4. Ice formation in a small Alaskan stream;Gilfilian,1972
5. Ice monitoring equipment;Kristinsson,1970