1. Anderson, J.E. (1992) A concept for evaluating and quantifying naturalness. Conservation Biology, 5, 347–352.
2. Bakker, J.P. (1989) Nature Management by Grazing and Cutting, Kluwer, Dordrecht.
3. Bazely, D.R. and Jefferies, R.L. (1986). Changes in the composition and standing crop of salt-marsh communities in response to the removal of a grazer. Journal of
Ecology, 74, 693–706.
4. Belsky, J.A. (1986) Population and community processes in a mosaic grassland in the Serengeti. Journal of Ecology, 52, 511–544.
5. Brown, J.H. and McDonald, W. (1995) Livestock grazing and conservation on Southwestern rangelands. Conservation Biology, 9, 1644–1647.