Glass AJ: Psychelogical aspects of disasters. JAMA 1959,171:222-225
Hoff LA; People in crisis: Understanding and Helping. Menlo Park, Calif, Addison-Wesley Publishing Co., 1978
Koegler RR, Hicks SM: The destruction of a medical center by earthquake: Initial effects on patients and staff. Calif Med, Feb 1972;116:63-67