@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}
}

@incollection{compref48,
   author = {Bennett,CH},
   year = {1988},
   title = {Logical Depth and Physical Complexity},
   booktitle = {The Universal Turing Machine, A Half-Century Survey},
   editor = {Herken,R},
   publisher = {Oxford University Press},
   address = {Oxford},
   pages = {227-257}
}

@article{compref46,
   author = {Bennett,CH},
   year = {1986},
   title = {On the Nature and Origin of complexity in Discrete, Homogenous, Locally-Interacting Systems},
   journal = {Foundations of Physics},
   volume = {16},
   pages = {585-592}
}

@incollection{compref45,
   author = {Bennett,CH},
   year = {1985},
   title = {Dissipation, Information, Computational Complexity and the Definition of Organization},
   booktitle = {Emerging Syntheses in Science},
   editor = {Pines,D},
   publisher = {Addison-Wesley},
   address = {Redwood city, CA},
   pages = {215-233}
}