Arthur, W. B.1988. Urban systems and historical path dependence. In Cities and their vital systems: Infrastructure past, present, and future. eds. J. H. Ausubel and R. Herman. Washington: National Academy Press.
2.
Tribe, L. H.1972. Policy science: Analysis or ideology?Philosophy and Public Affairs2: 66.
3.
Waldrop, M. M.1992. Complexity: The emerging science at the edge of order and chaos. New York: Simon and Schuster.
