Ulrich Ratzel (Q21340532)
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German physicist and entomologist
- Ratzel
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Ulrich Ratzel |
German physicist and entomologist |
|
Statements
Ratzel
0 references
1963
0 references
1 reference
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Wikipedia(1 entry)
- dewiki Ulrich Ratzel
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Multilingual sites(1 entry)
- specieswiki Ulrich Ratzel