Data collection for the GLES Panel (ZA6838) started on December 11, 2024. Information on the survey and the pre-release of the questionnaire can be found on the GLES website (476 kB).
Datenerhebung: GLES Panel, Welle 28 (ZA6838) ist am 11.12.2024 ins Feld gestartet
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GLES