8RJ. Bradt DA and Abrahams J. 2000, "Medical Issues in Disasters" In: Textbook o Adult Emergency Medicine. Cameron P. Jelinek G, Kelly A. M et al, (eds), London: Churchill Livingstone,
9Hewitt, Kenneth, ed. 1983. Interpretations of Calamity: From the Viewpoint of Human Ecology. London Allen and Unwin.
10Jarman, Alan M. G., and Kouzmin, Alexander 1994.“Creeping Crises, Environmental Agendas and Expert Systems : A Research Note.”International Review of Administrative Sciences 3 : 399 - 422.