By Woehner Helmut   in Noise Control Engineering Journal

ISSN:0736-2501|39|2|47-56

Institute of Noise Control Engineering‎(1992)‎

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By Woehner Helmut   in INTER-NOISE and NOISE-CON Congress and Conference Proceedings

ISSN:0736-2935|1990|5|355-360

Institute of Noise Control Engineering‎(1990)‎

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