"A system-of-system (SoS) approach for improved decision-making in infrastructure project selection problems" - PhD Dissertation, April 2008 Vander Schaaf, R. E. (2008). A system-of-system (SoS) approach for improved decision-making in infrastructure project selection problems [Doctoral dissertation, Purdue University]. Purdue e-Pubs. https://docs.lib.purdue.edu/dissertations/AAI3330618/