2026-10-17T02:29:17Z http://dbkapps.gesis.org/dbkoai/oai.asp

oai:dbk.gesis.org:SDN/10.7802_2034 2025-07-25 SDN

Dataset Corona Survey (restricted access) Langenkamp, Alexander, Universität Frankfurt am Main 10.7802/2034 10.7802/2034 10.7802/2034 10.7802/2034 doi:10.7802/2034 2020 de en https://doi.org/10.7802/2033 ]]> https://doi.org/10.7802/2033 ]]> GESIS Data Archive for the Social Sciences GESIS Data Archive