By Small D.J.   in Circuit World

ISSN:0305-6120|10|3|26-29

Emerald Group Publishing Ltd‎(1993)‎

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By Small D. J.   Davies P. O. A. L.   in Noise Control Engineering

ISSN:0093-9978|4|3|124-128

Institute of Noise Control Engineering‎(1975)‎

Access to resources Favorite 2.4422946