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(link to http://www.fulcrum-books.com/html/wilderness_management.html)

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(link to http://www.wilderness.net/pubs/science1999/volume3.htm)

Oelfke, Jack G.; Wright, R. Gerry. 2000. How long do we keep handling wolves in the Isle Royale Wilderness? Park Science 20(2): 14-18.

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