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*1001 $aRichardson, Martin$0(NO-TrBIB)1020050$4aut$_173561100
*24510$aSome economics of echo chambers$cMartin Richardson, Frank Stähler
*264 1$aBergen$bCentre for Applied Research at NHH$cFebruary 2020
*300  $a15 blader
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*4901 $aWorking paper / Centre for Applied Research at NHH$vno. 07/20$x1503-2140
*7001 $aStähler, Frank$0(NO-TrBIB)99021065$4aut$_14787800
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