1. Federal Emergency Management Agency. Terrorism training resources. Available at: http://training.fema.gov.
2. Reinvestigation into the death of Daniel Rohrbough at Columbine High School on April 20, 1999, Executive Summary. Available at: http://news.findlaw.com/hdocs/docs/columbine/columbine41702shrfrpt.pdf.
3. Collapse of Coalinga;Kallson;J Emerg Serv,1983
4. EMS response to a major aircraft incident in Sioux City, Iowa;Kems;Prehospital Disaster Med.,1990
5. The Kenner air disaster. A 727 falls into a New Orleans suburb;Morris;J Emerg Med Serv.,1982