classification_ss:"YFV (DU)"
author_ss:"Barnsley, M.F."
subject_ss:"Fractals"
classification_ss:"YCB (DU)"
classification_ss:"621.36/7 / dc20"
year_i:[1990 TO 2000}
1.0 = *:*, product of: 1.0 = boost 1.0 = queryNorm