@incollection{compref29,
   author = {Badii,R and Finardi,M and Broggi,G},
   year = {1991},
   title = {Recursive symbolic Encoding and Hierarchical Description of Complex Systems},
   booktitle = {Information Dynamics},
   editor = {Atmanspacher,H and Scheingraber,H},
   publisher = {Plenum Press},
   address = {New York},
   pages = {35-43}
}