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papers
in 2012

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papers
in 2011

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papers
in 2010

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papers
in 2009

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in 2008

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papers
in 2007

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papers
in 2006

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in 2005

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in 2004

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in 2003

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in 2002

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papers
in 2001

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papers
in 2000

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papers
in 1999

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papers
in 1998

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papers
in 1997

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papers
in 1996

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