000 00405nam a2200157Ia 4500
008 180620b9999 xxu||||| |||| 00| 0 eng d
082 _a621.38284 AHN
100 _aAhnert, Wolfgang
245 _aSound Reinforced Engineering
260 _a
_b
_c0
365 _a.00
650 _aLoudspeakers
650 _aAcoustical engineering
700 _aSteffen, Frank
906 _a2dc831237f00000101859ac53961562c
999 _c17976
_d17976