000 | 00453nam a22001337a 4500 | ||
---|---|---|---|
999 |
_c3025 _d3025 |
||
003 | OSt | ||
005 | 20181121115150.0 | ||
008 | 181121b ||||| |||| 00| 0 eng d | ||
040 | _cNational Acoustics Laboratories | ||
110 | _aInternational Electrotechnical Commission | ||
245 | _aCEI IEC 61669. Electroacoustics - Equipment for the measurement of real-ear acoustical characteristics of hearing aids | ||
260 |
_aGeneva _bCEI _c2001 |
||
942 |
_2udc _cBOOK |