Geographic Subject
Germany
299
Göttingen
67
Switzerland
40
Sweden
38
France
32
Marburg
32
Leipzig
30
Berlin
26
Paris
26
Netherlands
22
Soviet Union
20
India
19
Russia (Federation)
19
Uppsala
19
Jena
18
Giessen
17
Indonesia
17
Tübingen
15
Zurich
15
Breslau
13
Halle
13
Heidelberg
11
Zürich
11
Bern
10
Bonn
10
Lund
9
Munich
9
Dissertations
7
Earth
6
Groningen
6
Leiden
6
Münster
6
Asia, Southeastern
5
Utrecht
5
Copenhagen
4
Greifswald
4
Kiel
4
Königsberg
4
China
3
Italy
3
Malaysia
3
Russia
3
Thailand
3
Delft
2
Demark
2
Denmark
2
Finland
2
Frankfurt am Main
2
Genèva
2
Japan
2
more ...