urn:ddi:de.dezim:c49bc36f-46d9-40b4-bace-8f3c2a50c124:2 de.dezim c49bc36f-46d9-40b4-bace-8f3c2a50c124 2 extension:ShouldCalculateFrequenciesForValidValues False extension:ShouldCalculateFrequenciesForInvalidValues True shk@dezim-institut.de dctrl dctrl dctrl dctrl [generierte Variable] Qualitätskontrollen Kontroll-Dummy [generated variable] quality checks control dummy [generated variable] quality checks control dummy Short