Biodiversity and Conservation, Vol. 8, No. 7. (1 July 1999), pp. 927-955.
PLoS Biology, Vol. 4, No. 11. (1 November 2006), e360.
([2005])
Conservation Biology, Vol. 16, No. 3. (2002), pp. 587-589.
Conservation Biology, Vol. 6 (1992), pp. 570-580.
BioScience, Vol. 42, No. 6. (1992)
Conservation Biology, Vol. 15, No. 3. (2001), pp. 793-797.
Conservation Biology, Vol. 16, No. 3. (2002), pp. 580-583.
Conservation Biology, Vol. 16, No. 3. (2002), pp. 590-592.
(2001)
(1998)
Nature (Apr 2003)
Conservation Biology, Vol. 16, No. 1. (Feb 2002), pp. 232-237.
Biological Conservation, Vol. 111, No. 3. (2003), pp. 415-425.
Conservation Biology, Vol. 14, No. 6. (2000), pp. 1614-1622.
Journal of Sustainable Forestry, Vol. 16, No. 3/4. (2003)
Biological Conservation, Vol. 126, No. 2. (November 2005), pp. 206-215.
Conservation Biology, Vol. 19, No. 1. (February 2005), 268.
Conservation Biology, Vol. 19, No. 1. (February 2005), 139.
African Study Monographs, Vol. 15, No. 3. (1994), pp. 143-162.
Oryx, Vol. 33, No. 3. (July 1999), pp. 233-246.
Oryx, Vol. 35, No. 4. (1 October 2001), pp. 322-331.
(01 May 2003)
Pan Africa News, Vol. 2, No. 2.
Oryx, Vol. 36, No. 3. (2002), pp. 257-265.
Biological Conservation, Vol. 94, No. 3. (July 2000), pp. 265-272.
Gorilla Journal, Vol. 21 (December 2000)
Gorilla Journal, Vol. 22 (2001)
Gorilla Journal, Vol. 27 (December 2003)
Conservation Biology, Vol. 12, No. 1. (1998), pp. 137-147.
Oryx, Vol. 32, No. 2. (1998), pp. 131-144.
Primates, Vol. 42, No. 2. (2001), pp. 135-139.
Human Ecology, Vol. 25, No. 2. (1997), pp. 243-271.
(JanuaryMay May February00February 2002)
(February April-October February00February 2002)
Oryx, Vol. 31, No. 4. (1997), pp. 265-273.
Science, Vol. 268, No. 5207. (1995), pp. 25-25.
Conservation Biology, Vol. 12, No. 2. (1998), pp. 390-398.
Environmental Conservation, Vol. 25, No. 3. (1998), pp. 228-233.
Environmental Conservation, Vol. 23, No. 2. (1996), pp. 149-155.
Conservation Biology, Vol. 13, No. 2. (1999), pp. 385-396.
(Wednesday February January February00February 2002)
(September FebruaryJuly, February000 2000)
(September March-September, February00January 2001)
Journal of Applied Ecology, Vol. 32, No. 3. (1995), pp. 454-467.
Conservation Biology, Vol. 14, No. 6. (2000), pp. 1602-1613.
Conservation Biology, Vol. 16, No. 1. (2002), pp. 232-237.
New Scientist, Vol. 146, No. 1972. (1995), pp. 6-6.
Aids Research and Human Retroviruses, Vol. 16, No. 1. (2000), pp. 5-8.
Agriculture Ecosystems & Environment, Vol. 40, No. 1-4. (1992), pp. 335-354.