1. The description of road surface roughness;Dodds;Journal of Sound and Vibration,1973
2. Implications of isotropy in random surfaces;Kamash;Journal of Sound and Vibration,1977
3. The measurement and analysis of road surface roughness;Labarre;Motor Industry Research Association Report No. 1970/5,1970
4. Generalised terrain dynamic inputs to vehicles;Dodds;BSI Document ISO/TC 108/WG 9,1972
5. C. J. Dodds 1973 Private communication.