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  • × classification_ss:"OGC (HA)"
  • × classification_ss:"MS 7965"
  • × classification_ss:"AP 14000"
  • × year_i:[2010 TO 2020}
  1. Handbuch Soziale Medien (2017) 1.00
    1.0 = *:*, product of:
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      1.0 = queryNorm