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*1001 $aJepsen, Christopher$0(NO-TrBIB)2114371$_122733600
*24510$aWhat is the tradeoff between smaller classes and teacher quality?$cChristopher Jepsen, Steven Rivkin
*260  $aCambridge, Mass.$bNational Bureau of Economic Research$c2002
*300  $a45 s.$bill.
*4901 $aWorking paper series / National Bureau of Economic Research$v9205
*7001 $aRivkin, Steven$0(NO-TrBIB)2114370$_122733700
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