Leemon Baird, Barry Fagin. Faster Methods for Identifying Nontrivial Energy Conservation Functions for Cellular Automata. Fatès, Nazim and Kari, Jarkko and Worsch, Thomas.
Automata 2010 - 16th Intl. Workshop on CA and DCS, 2010, Nancy, France. Discrete Mathematics and Theoretical Computer Science, DMTCS Proceedings vol. AL, Automata 2010 - 16th Intl. Workshop on CA and DCS, pp.1-18, 2010, DMTCS Proceedings.
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