1998
Etienne G. Krug, Marcie-jo Kresnow, John P. Peddicord, Linda L. Dahlberg, Kenneth E. Powell, Alex E. Crosby, Joseph L. Annest, 1998: Suicide after Natural Disasters, The New England Journal of Medicine, February 5, 1998, Volume 338, Number 6. Special Article - Internet Version.
Etkin D., M. T. Vazquez, and I. Kelman, 1998: Natural Disasters and Human Activity: A Contribution to the North American Commission on Environmental Cooperation State of the Environment Report (Montréal, Canada: North American Commission for Environmental Cooperation)
