*0011012840
*00520190130101755.0
*007ta
*008080901s1988    xx#           000 u nob d
*00900555caa a2200181 c 4500
*019  $bk
*035  $a(EXLNZ-47BIBSYS_NETWORK)990823279204702201
*035  $a(NO-TrBIB)082327920
*035  $a082327920-47bibsys_network
*040  $aNO-TrBIB$bnob$ekatreg
*1001 $aHelmersen, Per$0(NO-TrBIB)90336285$_58579300
*24510$aFra observerte til observerende systemer$cPer Helmersen
*260  $c1988
*300  $aS. 11-31
*7730 $tGjennom speilet og tilbake$d[Oslo] : TANO, 1988$z8251825547$w998821505964702201
*901  $a80
*999  $aoai:nb.bibsys.no:990823279204702202$b2021-10-31T03:14:09Z$z990823279204702202
^