classification_ss:"KNZH (E)"
classification_ss:"06.74 Informationssysteme"
classification_ss:"AN 95000 (BVB)"
year_i:[2000 TO 2010}
classification_ss:"025.04 / DDC22ger"
1.0 = *:*, product of: 1.0 = boost 1.0 = queryNorm