T. P.  Young, Palmer, T. A., and Gadd, M. E., ?Competition and compensation among cattle, zebras, and elephants in a semi-arid savanna in Laikipia, Kenya?, Biological Conservation, vol. 122, pp. 351-359, 2005.

T. P.  Young, Patridge, N., and Macrae, A., ?Long-Term Glades in Acacia Bushland and Their Edge Effects in Laikipia, Kenya?, Ecological Applications, vol. 5, pp. 97-108, 1995.