TY - RPRT A1 - Bühlmann, Marc A1 - Merkel, Wolfgang A1 - Wessels, Bernhard T1 - The quality of democracy : democracy barometer for established democracies T3 - Hertie School Working Papers Series - 22 Y1 - 2008 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b1570-opus4-809 ER -