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http://journals.cambridge.org/action/displayAbstract?aid=164109
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ETHAN M. COVEN,
AIMEE JOHNSON,
NATASA JONOSKA
and KATHLEEN MADDEN
(2003).
The symbolic dynamics of multidimensional tiling systems. Ergodic Theory and Dynamical Systems, 23
,
pp 447-460
doi:10.1017/S014338570200113X