P
[Pin83] Jean-Éric Pin. On two combinatorial problems arising from automata theory. In ICGTC'81, North-Holland Mathematics Studies 75, pages 535-548. Elsevier, 1983. 
@inproceedings{icgtc1981-Pin,
  author =              {Pin, Jean-{\'E}ric},
  title =               {On two combinatorial problems arising from automata
                         theory},
  booktitle =           {{P}roceedings of the {I}nternational {C}olloquium on
                         {G}raph {T}heory and {C}ombinatorics ({ICGTC}'81)},
  acronym =             {{ICGTC}'81},
  publisher =           {Elsevier},
  series =              {North-Holland Mathematics Studies},
  volume =              {75},
  pages =               {535-548},
  year =                {1983},
  confyear =            {1981},
  confmonth =           {6},
  doi =                 {10.1016/S0304-0208(08)73432-7},
}
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