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"Closure properties of three-way and four-way tape-bounded two-dimensional ..."
Katsushi Inoue, Itsuo Takanami (1979)
- Katsushi Inoue, Itsuo Takanami:
Closure properties of three-way and four-way tape-bounded two-dimensional turing machines. Inf. Sci. 18(3): 247-265 (1979)

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