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2. Identifying codes with small radius in some infinite regular graphs;Charon;Electron. J. Combin.,2002
3. Minimizing the size of an identifying or locating-dominating code in a graph is NP-hard;Charon;Theoret. Comput. Sci.,2003
4. Possible cardinalities for identifying codes in graphs;Charon;Australas. J. Combin.,2005
5. Possible cardinalities for locating-dominating codes in graphs;Charon;Australas. J. Combin.,2006