*0011585474
*008910911s1991    xx#           000 0 nob
*019  $bk
*08230$a384.3
*100  $aSivertsen, Sigurd$_155466200
*245  $aPerspektiver for abonnentutbyggingen i Oslo teledistrikt$cSigurd Sivertsen
*300  $aS. 41-46
*773  $tTelektronikk$gÅrg. 87, nr 1 (1991)$x0085-7130$w(NO-LaBS)537526(tnr)
*999  $z9100133323$anorart:9100133323
^