Elk, Beaver, and the Persistence of Willows in National Parks: Response to Keigley (2000)
| Autor: | Singer, Francis J., Zeigenfuss, Linda C., Barnett, David T. |
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| Zdroj: | Wildlife Society Bulletin (1973-2006), 2000 Jul 01. 28(2), 451-453. |
| Databáze: | JSTOR Journals |
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