M
[MP05] Filippo Mera and Giovanni Pighizzini. Complementing Unary Nondeterministic Automata. Theoretical Computer Science 330(2):349-360. Elsevier, February 2005. 
@article{tcs330(2)-MP,
  author =              {Mera, Filippo and Pighizzini, Giovanni},
  title =               {Complementing Unary Nondeterministic Automata},
  publisher =           {Elsevier},
  journal =             {Theoretical Computer Science},
  volume =              {330},
  number =              {2},
  pages =               {349-360},
  year =                {2005},
  month =               feb,
}
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