1. Keating, C., Rogers, R., Unal, R., Dryer, D., Sousa-Poza, A., Safford, R., Peterson, W., Rabadi, G.: System-of-Systems Engineering. Engineering Management 15(3), 36–45 (2003)
2. Rouse, W.: Engineering Complex Systems: Implications for Research in Systems Engineering. IEEE Transactions on Systems, Man, and Cybernetics—Part C: Applications and Reviews 33(2), 154–156 (2003)
3. Sage, A.P., Cuppan, C.D.: On the Systems Engineering and Management of Systems of Systems and Federations of Systems. Information, Knowledge, Systems Management 2(4), 325–345 (2001)
4. Maier, M.W.: Architecting Principles for System-of-Systems. Systems Engineering 1(4), 267–284 (1998)
5. DeLaurentis, D.A., Calloway, R.K.: A System-of-Systems Perspective for Public Policy Decisions. Review of Policy Research 21(6), 829–837 (2004)