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2. Sound localization with an army helmet worn in combination with an in-ear advanced communications system;Abel;Noise Health,2009
3. Specification for Audiometers, ANSI S3.6-2004;American National Standards Institute,2004
4. Maximum Permissible Ambient Noise Levels for Audiometric Test Rooms, ANSI S3.1-2008;American National Standards Institute,2008
5. Method for Manual Pure-Tone Threshold Audiometry, ANSI S3.21-2008;American National Standards Institute,2008