Primates, Vol. 43, No. 1. (January 2002), pp. 19-27.
Biological Conservation, Vol. 114, No. 1. (November 2003), pp. 91-101.
International Journal of Primatology, Vol. 19, No. 6. (December 1998), pp. 1061-1079.
International Journal of Primatology, Vol. 23, No. 5. (October 2002), pp. 999-1024.
Evolutionary Anthropology: Issues, News, and Reviews, Vol. 6, No. 4. (7 December 1998), pp. 120-131.
International Journal of Primatology, Vol. 23, No. 2. (2002), pp. 263-282.
Am J Primatol, Vol. 64, No. 2. (October 2004), pp. 233-246.
Biotropica, Vol. 27, No. 4. (1995), pp. 526-530.
American Journal of Physical Anthropology, Vol. 106, No. 3. (1998), pp. 283-295.
Primates, Vol. 35, No. 1. (1994), pp. 1-14.
African Journal of Ecology, Vol. 31, No. 1. (1993), pp. 49-57.
International Journal of Primatology, Vol. 19, No. 6. (1998), pp. 1013-1027.
American Journal of Primatology, Vol. 26, No. 3. (1992), pp. 215-223.
American Journal of Primatology, No. 26. (1992), pp. 215-223.
Journal of Tropical Ecology, Vol. 15 (1999), pp. 39-60.
Journal of Tropical Ecology, Vol. 15 (1999), pp. 23-38.
American Journal of Physical Anthropology, Vol. 114, No. 4. (2001), pp. 331-342.
Journal of Biogeography, Vol. 21, No. 3. (1994), pp. 283-295.
International Journal of Primatology, Vol. 16, No. 2. (1995), pp. 221-245.
African Journal of Ecology, Vol. 39, No. 3. (2001), pp. 327-327.
Journal of Tropical Ecology, Vol. 7 (1991), pp. 181-199.
American Journal of Primatology, Vol. 42, No. 1. (1997), pp. 1-24.
American Journal of Primatology, Vol. 30, No. 3. (1993), pp. 195-211.
Auk, Vol. 114, No. 2. (1997), pp. 200-211.
Auk, Vol. 114, No. 3. (1997), pp. 396-404.
Biotropica, Vol. 28, No. 4. (1996), pp. 668-681.
International Journal of Primatology, Vol. 22, No. 6. (2001), pp. 877-911.
Dodo-Journal of the Wildlife Preservation Trusts, Vol. 33 (1997), pp. 158-159.
American Journal of Primatology, Vol. 45, No. 1. (1998), pp. 45-68.
International Journal of Primatology, Vol. 22, No. 5. (2001), pp. 807-836.
American Journal of Primatology, Vol. 43, No. 2. (1997), pp. 87-109.
Tropical Biodiversity, Vol. 4, No. 2. (1997), pp. 173-185.
American Journal of Primatology, Vol. 54, No. 2. (2001), pp. 91-105.
Primates, Vol. 36, No. 2. (1995), pp. 151-168.
Animal Behaviour, Vol. 61 (2001), pp. 915-924.
Folia Primatologica, Vol. 70, No. 3. (1999), pp. 154-162.
American Journal of Primatology, Vol. 23, No. 3. (1991), pp. 153-169.
American Journal of Primatology, Vol. 45, No. 1. (1998), pp. 9-28.
American Journal of Physical Anthropology, Vol. 109, No. 3. (1999), pp. 365-386.
African Journal of Ecology, Vol. 36, No. 3. (1998), pp. 234-240.
International Journal of Primatology, Vol. 22, No. 6. (2001), pp. 947-959.
International Journal of Primatology, Vol. 20, No. 1. (1999), pp. 1-23.
International Journal of Primatology, Vol. 22, No. 6. (2001), pp. 929-945.
Nature, Vol. 410, No. 6826. (2001), pp. 363-366.
International Journal of Primatology, Vol. 20, No. 3. (1999), pp. 327-357.
Ecological Monographs, Vol. 70, No. 1. (2000), pp. 101-128.
Conservation Biology, Vol. 15, No. 6. (2001), pp. 1733-1741.
African Journal of Ecology, Vol. 35, No. 4. (1997), pp. 287-302.
International Journal of Primatology, Vol. 17, No. 1. (1996), pp. 31-50.
Journal of Tropical Ecology, Vol. 13 (1997), pp. 885-891.