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2. ISO/DIS 3095:1993 Draft Standard, Measurement of noise emitted by railbound vehicles
3. CENT/TC 256 Working Group 3 1995 Draft Standard, Railway applications/acoustics—measurement of external noise emitted by railbound vehicles
4. M. G. DITTRICH, J. LUB, G. POLLONE, M. KALIVODA, 1998, METARAIL Report D10, TNO, Delft, Methodologies for type testing and monitoring of railway noise (Task III.4)
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