On the Physiographical Evolution of Spitsbergen Explaining the Present Attitude of the Coal-Horizons
| Autor: | De Geer, Gerard |
|---|---|
| Zdroj: | Geografiska Annaler, 1919 Jan 01. 1, 161-192. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
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| Autor: | De Geer, Gerard |
|---|---|
| Zdroj: | Geografiska Annaler, 1919 Jan 01. 1, 161-192. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
|