@incollection{compref366,
   author = {Zurek,WH},
   year = {1990},
   title = {Algorithmic Information Content, Church-Turing Thesis, Physical Entropy, and Maxwell's Demon},
   booktitle = {Complexity, Entropy and the Physics of Information},
   editor = {Zurek,WH},
   publisher = {Addison-Wesley},
   address = {Redwood City, California},
   pages = {73-89}
}

@article{compref329,
   author = {Turney,P},
   year = {1990},
   title = {Problems with Complexity in Gold's Paradigm of Induction-Part I: Dynamic Complexity},
   journal = {International Journal of General Systems},
   volume = {17},
   pages = {329-342}
}

@article{compref290,
   author = {Rustem,B and Velupillai,K},
   year = {1990},
   title = {Rationality, Computability and Complexity},
   journal = {Journal of Economic Dynamics and Control},
   volume = {14},
   pages = {419-432}
}

@incollection{compref278,
   author = {Rissanen,J},
   year = {1990},
   title = {Complexity of Models},
   booktitle = {Complexity, Entropy and the Physics of Information},
   editor = {Zurek,WH},
   publisher = {Addison-Wesley},
   address = {Redwood City, Claifornia},
   pages = {117-125}
}

@article{compref225,
   author = {Maddox,J},
   year = {1990},
   title = {Complicated Measures of Complexity},
   journal = {Nature},
   volume = {344},
   pages = {705}
}

@article{compref213,
   author = {Lipman,BL and Srivastava,S},
   year = {1990},
   title = {Informational Requirments and Strategic Complexity in Repeated Games},
   journal = {Games and Economic Behaviour},
   volume = {2},
   pages = {273-290}
}

@article{compref328,
   author = {Turney,P},
   year = {1990},
   title = {Problems with Complexity in Gold's Paradigm of Induction--Part II: Static Complexity},
   journal = {International Journal of General Systems},
   volume = {17},
   pages = {343-358}
}

@article{compref37,
   author = {Banks,JF and Sundaram,RK},
   year = {1990},
   title = {Repeated Games, Finite Automata and Complexity},
   journal = {Games and Economic Behaviour},
   volume = {2},
   pages = {97-117}
}

@article{compref318,
   author = {Sumners,DW},
   year = {1990},
   title = {Complexity Measures for Random Knots},
   journal = {Computers & Chemistry},
   volume = {14},
   pages = {275-279}
}

@article{compref224,
   author = {Machlin,R},
   year = {1990},
   title = {The Complex Behaviour of Simple Machines},
   journal = {Physica D},
   volume = {42},
   pages = {85-98}
}

@incollection{compref214,
   author = {Lloyd,S},
   year = {1990},
   title = {Physical Measures of Complexity},
   booktitle = {1989 Lectures in Complex Systems},
   editor = {Jen,E},
   publisher = {Addison-Wesley},
   address = {Redwood City, California},
   pages = {67-73}
}

@incollection{compref159,
   author = {Heylighen,F},
   year = {1990},
   title = {Relational Closure: a Mathematical Concept for Distinction-making and complexity analysis},
   booktitle = {Cybernetics and Systems '90},
   editor = {Trappl,R},
   publisher = {World Scientific},
   address = {Singapore},
   pages = {335-341}
}

@article{compref153,
   author = {Harnad,S},
   year = {1990},
   title = {The symbol grounding problem},
   journal = {Physica D},
   volume = {42},
   pages = {335-346}
}

@article{compref130,
   author = {George,DAR},
   year = {1990},
   title = {Chaos and Complexity in Economics: Review Article},
   journal = {Journal of Economic Surveys},
   volume = {4},
   pages = {397-404}
}

@article{compref102,
   author = {d'Alessandro,G and Politi,A},
   year = {1990},
   title = {Hierarchical approach to complexity with applications to dynamic systems},
   journal = {Physics Review Letters},
   volume = {64},
   pages = {1609-1612}
}

@article{compref65,
   author = {Burgin,MS},
   year = {1990},
   title = {Generalised Kolmogorov Complexity and other dual Complexity Measures},
   journal = {Cybernetics},
   volume = {26},
   pages = {481-491}
}

@incollection{compref49,
   author = {Bennett,CH},
   year = {1990},
   title = {How to Define Complexity in Physics, and Why},
   booktitle = {Complexity, Entropy and the Physics of Information},
   editor = {Zurek,WH},
   publisher = {Addison-Wesley},
   address = {Redwood City California},
   pages = {137-148}
}

@book{compref34,
   author = {Balcazar,JL},
   year = {1990},
   title = {Structural Complexity},
   publisher = {Springer-Verlag},
   address = {Berlin}
}

@book{compref35,
   author = {Balcazar,JL},
   year = {1990},
   title = {Structural Complexity},
   publisher = {Springer-Verlag},
   address = {Berlin}
}

@book{compref33,
   author = {Baker,GL},
   year = {1990},
   title = {Chaotic Dynamics},
   publisher = {Cambridge University Press},
   address = {Cambridge}
}