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- [1] On the noticeability of small and gradual declines in aircraft noise exposure levels INTER-NOISE 96 - THE 1996 INTERNATIONAL CONGRESS ON NOISE CONTROL ENGINEERING, 25TH ANNIVERSARY CONGRESS - LIVERPOOL, PROCEEDINGS, BOOKS 1-6: NOISE CONTROL - THE NEXT 25 YEARS, 1996, : 2247 - 2252
- [4] COCKPIT NOISE IN SMALL AIRCRAFT JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1966, 39 (06): : 1255 - &