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*019  $bl
*035  $a(EXLNZ-47BIBSYS_NETWORK)990209687364702201
*035  $a(NO-LaBS)13697352(bibid)
*035  $a(NO-TrBIB)020968736
*035  $a020968736-47bibsys_network
*040  $aNO-TrBIB$bnob$ekatreg
*24500$aEffective protection redux
*260  $aCambridge, Mass.$bNBER$c1996
*300  $a32 s.
*4901 $aNBER working paper series$v5854
*7001 $aAnderson, James E.$_21536500
*7102 $aNational Bureau of Economic Research (Forente Stater)$_13074800
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v5854$w999105437124702201$_13074900
*901  $a60
*999  $aoai:nb.bibsys.no:990209687364702202$b2021-11-14T19:43:54Z$z990209687364702202
^