@incollection{compref364,
   author = {Ziv,J},
   year = {1983},
   title = {Complexity and Coherence of Sequences},
   booktitle = {The Impact of Data Processing Techniques on Communications},
   editor = {Durand,H and di Lullo,M and Sinclair,C},
   publisher = {Nijhoff},
   address = {Dordrecht},
   pages = {23-33}
}

@article{compref205,
   author = {Lempel,A and Ziv,J},
   year = {1976},
   title = {On the complexity of finite sequences},
   journal = {IEEE Transactions on Information Theory},
   volume = {22},
   pages = {75-81}
}