1. Adelson, B.: 1984, ?When Novices Surpass Experts: The Difficulty of a Task May Increase With Expertise?, J. Exp. Psychol. Learning, Memory and Cognition 10 (3), 483?495.
2. Anscombe, G.: 1961, ?War and Murder?, reprinted in The Collected Papers of G. E. M. Anscombe, Vol. 3, Ethics, Religion and Politics, University of Minnesota Press, Minneapolis, pp. 51?61.
3. Attfield, R.: 1991, The Ethics of Environmental Concern, 2nd edn., University of Georgia Press, Athens.
4. Bentham, J.: 1789/1970, in J. H. Burns and H. L. A. Hart (eds.), The Principles of Morals and Legislation, Athalone Press, London.
5. Committee on Environment and Natural Resources Research of the National Science and Technology Council, Subcommittee on Global Change Research (CENRR): n.d., Our Changing Planet: The FY 1996 U.S. Global Change Research Program, no publication data.