000 00285nam a2200121 a 4500
003 EIA
001 7535
942 _02
_2ddc
_cBK
245 _aUninterruptible power supplies and active filters
260 _c2005
008 141112s2005 ck r 000 u spa d
082 _a621.381
_bE531
999 _c13557
_d13557