2011:
soep-is-2011/Q632012:
soep-is-2012-haupt/Q712013:
soep-is-2013-f/Q1032014:
soep-is-2014-f/Q892015:
soep-is-2015/Q1482016:
soep-is-2016-f/Q1262019:
soep-is-2019/Q1382020:
soep-is-2020/Q130 soep-bip-2020-e/Q68Attention
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