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What do citizens expect from a democracy? An invariance test and comparison between East and West Germany with the ISSP 2004 [collection article]
Source: Springer VS, 2012
A comparison of the invariance properties of the PVQ-40 and the PVQ-21 to measure human values across German and Polish Samples [journal article]
Source: Survey Research Methods, 6 (2012) 1. p.37-48
Testing the discriminant validity of Schwartz' portrait calue questionnaire items: a replication and extension of Knoppen and Saris (2009) [journal article]
Source: Survey Research Methods, 6 (2012) 1. p.25-36