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1
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2Argitaratua 1996GaiakLiburua
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3nork Bowler, Shaun, 1958-Gaiak “...Proportional representation United States....”
Argitaratua 2003
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4nork Guinier, LaniGaiak “...Proportional representation United States....”
Argitaratua 1994
Liburua