共 50 条
- [1] Managing wilderness areas within limits of acceptable change PORTLAND'99: PIONEERING NEW TRAILS, PROCEEDINGS, 2000, : 532 - 533
- [2] THE CHALLENGE OF MANAGING WILDERNESS IN AN ERA OF CHANGE OUTDOOR RECREATION BENCHMARK 1988 : PROCEEDINGS OF THE NATIONAL OUTDOOR RECREATION FORUM, 1989, 52 : 385 - 393