00326nam a2200109Ia 4500008004100000082001600041100002300057245008800080250001200168264002600180300001000206200526s9999||||xx |||||||||||||| ||und||  a620.23  BRO  aBroch, Jens Trampe 0aApplication of the Bruel and Kjaer Measuring Systems to Acoustic Noise Measurements  a2nd ed.  bBruel And Kjaerc1971  a203p.