1. Uber den Larem Strassenverkehrs;Rathé;Acustica,1966
2. Noise and vibration problems in commercial vehicles;Priede;J. Sound Vib.,1967
3. The evaluation of noise from freely flowing road traffic;Johnson;J. Sound Vib.,1968
4. Method for the measurement of noise emitted by motor vehicles;I.S.O. Recommendation No. R362& B.S. 3425,1966
5. Road traffic: the motor vehicles (construction and use) (amendment) regulations;SI 1968 No. 362,1968