Principles of Complex Systems for Systems Engineering
Sheard, S. A. & Mostashari, A. 2009. "Principles of Complex Systems for Systems Engineering." Systems Engineering. 12(4), 295-311.
This source is considered a primary reference for the following articles:
This reference gives a very good overview of the different perspectives of complexity from both the hard objective and soft subjective perspectives. It attempts to provide a conceptual framework for complexity which will add significantly to the knowledge in this area when complete.