Indigo
beginning - formation
selection
Hardy and Graedel 2002
network, connectivity view
connectivity calculated as 2*number_of_links/(nodes*(nodes-1))
Ashby's Law of requisite variability
regulation must approximate the complexity of the system
Indigo Development - http://www.indigodev.com/Kal.html
Allen, David T. and R. Scott Butner (November 2002) Industrial Ecology: A Chemical Engineering Challenge. CEP pg 40-45.
Hardy, Catherine and Thomas E. Graedel. 2002. Industrial ecosystems as food webs. Journal of Industrial Ecology. 6(1):29-38.
local-link only
article through PSU
community matrix - http://mitpress.mit.edu/JIE
Van der Ryn, Sim and Stuart Cowan. 1996. Ecological Design. Island Press, Washington, D.C. GE170 .V36