1. World Health Organization, Psychosocial Guidelines for Preparedness and Intervention in Disaster, WHO, Geneva, 2001.
2. List of major natural disasters, 1960–1987;Bertz;Earthquakes and Volcanoes,1989
3. International Committee of the Red Cross, World Disaster Report 2000, ICRC, Geneva, 2001.
4. Public reactions in Norway to radioactive fallout;Weisæth;Rad. Prot. Dosim.,1995
5. A. Tønnessen, Psychological Reactions to Nuclear Threats—Information, Coping and the Uncertainties of Outcome at the Individual Level, University of Oslo, Oslo, 2002.