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*019  $bl
*035  $a(EXLNZ-47BIBSYS_NETWORK)990209359784702201
*035  $a(NO-LaBS)13520334(bibid)
*035  $a(NO-TrBIB)020935978
*035  $a020935978-47bibsys_network
*040  $aNO-TrBIB$bnob$ekatreg
*24504$aThe decline of non-competing groups :$bchanges in the premium to education, 1890 to 1940$cClaudia Goldin, Lawrence F. Katz
*260  $aCambridge, Mass.$bNBER$c1995
*300  $a34,<21> s.
*4901 $aNBER working paper series$vno. 5202
*7001 $aGoldin, Claudia$_34145200
*7001 $aKatz, Lawrence F.$_31713000
*7102 $aNational Bureau of Economic Research (Forente Stater)$_13074800
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$vno. 5202$w999105437124702201$_13074900
*901  $a60
*999  $aoai:nb.bibsys.no:990209359784702202$b2021-11-14T20:45:08Z$z990209359784702202
^