classification_ss:"54.08 / Informatik in Beziehung zu Mensch und Gesellschaft"
classification_ss:"54.32 / Rechnerkommunikation"
classification_ss:"DP 2600"
classification_ss:"ST 205"
theme_ss:"Internet"
1.0 = *:*, product of: 1.0 = boost 1.0 = queryNorm