Geographic Subject
4
2
4.220
1
4.415
4
4.460
1
4.890
1
5.200
1
5.205
1
6.515
1
6.680
1
Aachen (Germany)
1
Achterstandsgebieden
1
Africa, Sub-Saharan
1
Alps, Austrian
2
Alps, Bavarian (Germany)
1
Aunjetitz site
1
Aunjetitz site (Czechoslovakia)
1
Austria
7
Bad Hersfeld
1
Bad Hersfeld (Germany)
2
Bad Pyrmont
1
Baden-Württemberg (Germany)
1
Balkan Peninsula
1
Bavaria
2
Bavaria (Germany)
1
Berg (Duchy)
1
Birkenfeld
1
Bolivia
1
Brandenburg
1
Brazil
2
Bremen (Duchy)
1
Buchenau
1
Bukovina
1
Canada
2
Castile (Spain)
1
Chartres
1
China
1
Chios (Island)
3
Cleve (Duchy)
1
Cologne
2
Cologne (Germany)
1
Communist countries
1
Congo (Democratic Republic)
1
Crete
1
Czechoslovakia
2
Deutschland (Bundesrepublik)
1
Developing countries
1
Dissertation
1
Dortmund (Germany)
2
Düsseldorf (Germany)
1
Eder River
1
more ...