[1] N/A
[2] http://epubs.siam.org/sam-bin/dbq/article/28993
[3] N/A
[4] http://cwc.ucsd.edu/~psiegel/pubs/98/shannon.ps
[5] http://www.code.ucsd.edu/~zeger/publications/journals/KaZe-IT-2dim/final.ps
[6] http://www.math.washington.edu/SymbolicDynamics/
[7] http://www.code.ucsd.edu/~zeger/publications/journals/NaZe-IT-3dim/submitted.ps

