From the Abstract: "Public administrationists [sic] have been relatively slow to address the organizational issues in emergency management and the policy dilemmas resulting from the complex intergovernmental context of disaster policy and emergency management. A 1984 workshop helped develop a small community disaster researchers and they have provided much of the core of public administration disaster research over the past two decades. The events of September 11, 2001, however, have drawn many more public administrationists [sic] to disaster-related research, but the difficulty gaining access to Homeland Security offices and the lack of transparency in Homeland Security operations has created serious problems for those seeking to conduct rigorous research on organizational structures and processes."
FEMA's Emergency Management Institute: https://training.fema.gov/
McEntire, David A. (Ed.). Disciplines, Disasters and Emergency Management: The Convergence and Divergence of Concepts, Issues and Trends from the Research Literature. Emmitsburg, MD: Emergency Management Institute, Spring 2006. ch.11