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              Budge, Ian, and Judith Bara. 2001. "Manifesto-based Research: A Critical Review." In: Mapping Policy Preferences. Estimates for Parties, Electors, and Governments 1945−1998, Ian Budge, Hans-Dieter Klingemann, Andrea Volkens, Judith Bara, Eric Tanenbaum with Richard C. Fording, Derek J. Hearl, Hee Min Kim, Michael McDon- ald, Silvia Mendez. Oxford: Oxford University Press, pp. 51−74.
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              Budge, Ian/Bara, Judith (2001): Manifesto-based Research: A Critical Review. In: Budge, Ian/Klingemann, Hans-Dieter/Volkens, Andrea/Bara, Judith/Tanenbaum, Eric with Fording, Richard C./Hearl, Derek J./Kim, Hee Min/McDonald, Micha- el/Mendez, Silvia: Mapping Policy Preferences. Estimates for Parties, Electors, and Governments 1945-1998. Oxford: Oxford University Press. 51-74.
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