1. Local Scour Around Cylindrical Piers
2. Ettema R. “Influence of Bed Gradation on Local Scour ” Report No. 124 University of Auckland School of Engineering Auckland New Zealand 1976.
3. Ettema R. “Scour at Bridge Piers ” Report No. 216 University of Auckland School of Engineering 1980.
4. Melville B. W. “Local Scour at Bridge Sites ” Report No. 117 University of Auckland School of Engineering 1975.
5. Scour problems at railway bridges on the Thompson River, B.C.