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*019  $bl
*035  $a(EXLNZ-47BIBSYS_NETWORK)990209395074702201
*035  $a(NO-LaBS)13774347(bibid)
*035  $a(NO-TrBIB)020939507
*035  $a020939507-47bibsys_network
*040  $aNO-TrBIB$bnob$ekatreg
*24504$aThe effect of measured school inputs on academic achievement :$bevidence from the 1920s, 1930s and 1940s birth cohorts$cSusanna Loeb, John Bound
*260  $aCambridge, Mass.$bNBER$c1995
*300  $a30,[12] s.
*4901 $aNBER working paper series$vno. 5331
*7001 $aBound, John$_16194900
*7001 $aLoeb, Susanna$_36043700
*7102 $aNational Bureau of Economic Research (Forente Stater)$_13074800
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$vno. 5331$w999105437124702201$_13074900
*901  $a60
*999  $aoai:nb.bibsys.no:990209395074702202$b2021-11-14T19:51:38Z$z990209395074702202
^