Woodland/Grassland Boundary Changes in the Middle Niobrara Valley of Nebraska Identified by δ 13 C Values of Soil Origanic Matter
| Autor: | Steuter, Allen A., Jasch, Bruce, Ihnen, Joel, Tieszen, Larry L. |
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| Zdroj: | The American Midland Naturalist, 1990 Oct 01. 124(2), 301-308. |
| Databáze: | JSTOR Journals |
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