classification_ss:"Mat J 91 / Fraktal"
classification_ss:"31.59 / Geometrie: Sonstiges"
subject_ss:"Fraktal (BVB)"
classification_ss:"YCB (DU)"
year_i:[1990 TO 2000}
1.0 = *:*, product of: 1.0 = boost 1.0 = queryNorm