2013:
soep-is-2013-f/Q63 soep-is-2013-f/Q63_2 soep-is-2013-a/Q63
2015:
2017:
soep-is-2017-f/Q73B soep-is-2017-f/Q73A
2019:
2022:
2023:
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502694e4-8413-5453-a489-453acf252542
DE
no period:
0:
2011:
2012: