1. Amin, T.: 1994, ?Pakistan, Afghanistan and the Central Asian states?, in A. Banuazizi and M. Weiner (eds.), The New Geopolitics of Central Asia and its Borderlands, Bloomington, Indiana, Indiana University Press, pp. 216?231.
2. Barlow, M. and H. Cullen: 2002, The Climate Perspective of Greater Central Asia, Unpublished manuscript prepared for meeting. Available from authors at hcullen@ucar.edu.
3. BBC News: 2002, Central Asia Gas Deal Signed, 30 June 2002.
4. Boulding, K.: 1971, Collected Papers, Vol. II, Foreword to T.R. Malthus, Population, The First Essay. Boulder, CO, Colorado Associated University Press, pp. 137?142.
5. Bruntland, G. (ed.): 1987, Our Common Future: The World Commission on Environment and Development, Oxford, Oxford University Press.