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*035  $a(NO-LaBS)14472651(bibid)
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*24500$aAbility tracking, school, competition, and the distribution of educational benefits$cDennis Epple, Elizabeth Newlon, Richard Romano
*260  $aCambridge, Mass.$bNBER$c2000
*300  $a55 s.
*4901 $aNBER working paper series$v7854
*7001 $aEpple, Dennis$_30598200
*7001 $aNewlon, Elizabeth$_30621900
*7001 $aRomano, Richard$_30598300
*7102 $aNational Bureau of Economic Research (Forente Stater)$_13074800
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