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<p>Journal of Research of the National Institute of Standards and Technology
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<br>Subjects:  standard microphones; acoustical calibration;  calibration of microphones;  depth-measuring microscope;  microphone front cavity depth;  reciprocity calibration</div>
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<dl><dd>Nedzelnitsky, Victor</dd>
<dd>Wagner, Randall P.</dd></dl></div>
Internet Archive identifier