The Age of Infrastructure in a Time of Security and Natural Hazards
In U.S. DHS and Columbia University, Buildings and Infrastructure Protection Series Aging Infrastructure: Issues, Research, and Technology BIPS 01, Chapter 2, pp. 2-6 to 2-17, Washington, DC: U.S. DHS, (December 2010)
Zimmerman, R., Restrepo, C.E. & Simonoff, J.S.