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*7001 $aPettersen, Franck$0(NO-TrBIB)90232550$_60049000
*7001 $aWinther, Stein$d1944-$0(NO-TrBIB)90137346$_14319800
*800  $aWestbye, Øivind$tMin matematikk$_164570300
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*999  $aoai:nb.bibsys.no:998221166774702202$b2021-11-14T20:46:50Z$z998221166774702202
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