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*1001 $aDragesund, Olav$d1926-$0(NO-TrBIB)90620909$_14602700
*24510$aOn the possibility of estimating yearclass strength by measuring echo-abundance of 0-group fish$cby Olav Dragesund and Steinar Olsen
*260  $c1965
*300  $aS. 48-75
*653  $asonans$abiologi$_124611000
*7001 $aOlsen, Steinar$d1949-$0(NO-TrBIB)90159643$_20194700
*7102 $aFiskeridirektoratets havforskningsinstitutt$0(NO-TrBIB)90056934$_14185900
*7730 $tReports on Norwegian fishery and marine investigations$dBergen : Fiskeridirektoratet, 1965$w990102706044702201
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*999  $aoai:nb.bibsys.no:990611545394702202$b2021-10-31T03:13:56Z$z990611545394702202
^