1. ASTM (2002) Book of ASTM Standards, 04.03, ASTM E1911-98. Standard Test Method for Measuring Paved Surface Frictional Properties Using the Dynamic Friction Tester (ASTM, West Conshohocken, PA), pp 1186–1196.
2. Austroads (2005) Guide to the Management of Road Surface Skid Resistance (Austroads Incorporated, Sydney).
3. BSI (2000) BS EN 1097-8. Tests for mechanical and physical properties of aggregates—Part 2: Determination of the polished stone value (British Standards Institution, London).
4. Cenek P.D. Carpenter P. Jamieson N.J. Stewart P.F. (2003) Prediction of Skid Resistance Performance of Chipseal Roads 256, Transfund New Zealand Research Report?>.
5. Petrogenesis of Tauhara Dacite (Taupo Volcanic Zone, New Zealand) - Evidence for magma mixing between high-alumina andesite and rhyolite