@incollection{compref648,
   author = {Arthur,WB},
   year = {1994},
   title = {On the Evolution of Complexity},
   booktitle = {Complexity: Metaphors, Models and Reality},
   editor = {Cownan,G and Pines,D and Meltzer,D},
   publisher = {Addison-Wesley},
   address = {Reading, MA},
   pages = {65-78}
}