@incollection{compref284,
   author = {Rosen,R},
   year = {1985},
   title = {Organisms as Causal Systems Which Are Not Mechanisms: An Essay into the Nature of Complexity},
   booktitle = {Theoretical Biology and Complexity: Three Essays on the Natural Philosophy of Complex Systems},
   editor = {Rosen,r},
   publisher = {Academic Press},
   address = {London},
   pages = {165-203}
}