*0011752396 *008991108s1999 xx# 000 0 nob *019 $bk *08230$a621.3126 *100 $aSørensen, Rune$_130193500 *245 $aAldring av transformatorer *300 $aS. 12-13 : ill. *650 $atransformatorer$2norart$_27062000 *773 $tElektro$gÅrg. 112, nr 7 (1999)$x0013-550X$w(NO-LaBS)821143(tnr) *999 $z9900267596$anorart:9900267596 ^