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Institute
SDNB
030 General encyclopedic works050 General serials & their indexes100 Philosophy150 Psychology230 Christian theology370 Education520 Astronomy & allied sciences560 Paleontology Paleozoology620 Engineering & allied operations630 Agriculture650 Management & auxialiary services830 Literatures of Germanic languages910 Geography & travel943 General history of Europe Central Europe Germany990 General history of other areas