2011:
2012:
2013:
2014:
2015:
2016:
soep-is-2016-f/Q359 soep-is-2016-a/Q359
2017:
2019:
2020:
soep-is-2020/Q314 soep-bip-2020-e/Q196
2022:
2023:
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58c80d8d-c233-5a8f-b3bd-8092e9dee612
DE
2018: