classification_ss:"17.56 Semantik"
classification_ss:"18.00 Einzelne Sprachen und Literaturen allgemein"
classification_ss:"401.43"
classification_ss:"ET 400 (BVB)"
year_i:[2010 TO 2020}
1.0 = *:*, product of: 1.0 = boost 1.0 = queryNorm