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http://www.urz.uni-heidelberg.de/subject/hd/fak7/hist/o2/9/0/ (Einblicke ins Internet, 10/1995)

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• 900 Geography & History etc.
• 901 Philosophy & theory (including methodology)
• 902 Miscellany
• 905 Serials
• 907 Education, research, related topics
• 909 World History