source:
[PDF] Complex Adaptive Systems and the Development of Force Structures for the United States Air Force | Semantic Scholar
also: https://www.airuniversity.af.edu/Portals/10/AUPress/Papers/DP_0018_MURPHY_COMPLEX_ADAPTIVE_SYSTEMS.PDF
(And copy at https://media.defense.gov/2017/Nov/21/2001847257/-1/-1/0/DP_0018_MURPHY_COMPLEX_ADAPTIVE_SYSTEMS.PDF )