@article{compref653,
   author = {Xie,H},
   year = {1995},
   title = {Distinct Excluded Blocks and Grammatical Complexity of Dynamical Systems},
   journal = {Complex Systems},
   volume = {9},
   pages = {73-90}
}

@article{compref640,
   author = {Banzhaf,W},
   year = {1994},
   title = {Self-Replicating Sequences of Binary Numbers:  The Build-up of Complexity},
   journal = {Complex Systems},
   volume = {8},
   pages = {215-225}
}

@article{compref641,
   author = {Gorodkin,J and Sorensen,A and Winther,O},
   year = {1993},
   title = {Neural Networks and Cellular Automata Complexity},
   journal = {Complex Systems},
   volume = {7},
   pages = {1-23}
}

@article{compref211,
   author = {Li,W},
   year = {1991},
   title = {On the Relationship between Complexity and Entropy for markov Chains and Regular Languages},
   journal = {Complex Systems},
   volume = {5},
   pages = {381-399}
}

@article{compref362,
   author = {Zambella,D and Grassberger,P},
   year = {1988},
   title = {Complexity of Forcasting in a Class of Simple Models},
   journal = {Complex Systems},
   volume = {2},
   pages = {269-303}
}

@article{compref212,
   author = {Lindgren,K and Nordahl,MG},
   year = {1988},
   title = {Complexity measures and cellular automata},
   journal = {Complex Systems},
   volume = {2},
   pages = {409}
}

@article{compref197,
   author = {Koppel,M},
   year = {1987},
   title = {Complexity, Depth and Sophistication},
   journal = {Complex Systems},
   volume = {1},
   pages = {1087-1091}
}


