1. Barlow E. (1972). Frederick Law Olmsted's New York . Praeger New York N.Y.
2. Modeling Infrastructure Performance and User Costs
3. “Bridge infrastructure: matching resources to the need.” (1991). Rep. Prepared for U.S. Senate Committee on Environment and Public Works General Accounting Ofc. Washington D.C.
4. “Building performance: function preservation and rehabilitation.” (1986). Proc. Symp. on Performance of Build. Constr. ASTM Spec. Tech. Publ. 901 ASTM Philadelphia Pa.
5. Downs A. H. (1995). “The hidden impacts of obsolescence.” Nat. Real Estate Investor Aug. 18–20.