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*035  $a(EXLNZ-47BIBSYS_NETWORK)990210321304702201
*035  $a(NO-LaBS)14568219(bibid)
*035  $a(NO-TrBIB)021032130
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*040  $aNO-TrBIB$bnob$ekatreg
*24500$aCowards and heroes :$bgroup loyalty in the American civil war$cDora L. Costa, Matthew E. Kahn
*260  $aCambridge, Mass.$bNBER$c2001
*300  $a34 s.
*4901 $aNBER working paper series$v8627
*7001 $aCosta, Dora L.$_13173800
*7001 $aKahn, Matthew E.$_59025500
*7102 $aNational Bureau of Economic Research (Forente Stater)$_13074800
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v8627$w999105437124702201$_13074900
*901  $a60
*999  $aoai:nb.bibsys.no:990210321304702202$b2021-11-14T20:52:52Z$z990210321304702202
^