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Subjects
Local transit, Noise, Helicopters, Measurement, Noise control, Costs, Flight testing, Greater Cleveland Regional Transit Authority, Port Authority Transit Corporation, Rotary wings, Rotor acoustics, Southeastern Pennsylvania Transportation AuthorityID Numbers
- OLID: OL4357587A
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Alternative names
- R. H Spencer
May 27, 2012 | Edited by Alan Millar | merge authors |
August 31, 2008 | Created by ImportBot | Imported from Talis record |