scholarly journals An active noise reduction system for flying helmets and ear protectors

1986 ◽  
Vol 79 (S1) ◽  
pp. S18-S18 ◽  
Author(s):  
Graham M. Rood
1992 ◽  
Vol 91 (5) ◽  
pp. 3085-3085
Author(s):  
Edwin Langberg ◽  
F. Gerald Caruso

2007 ◽  
Vol 121 (4) ◽  
pp. 1839
Author(s):  
William Richard Saunders ◽  
Michael Allen Vaudrey

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