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%T Towards an improved research infrastructure for the social sciences: future demands and needs for action - Providing data on the European level %A Elias, Peter %P 11 %V 46 %D 2008 %C DEU %C Berlin %G en %9 Arbeitspapier %W GESIS - http://www.gesis.org %~ SSOAR - http://www.ssoar.info