On regular expressions over one letter and on commutative languages

Författare

  • Topi Urponen
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Article

Publicerad

1972-01-17

Referera så här

Urponen, T. (1972). On regular expressions over one letter and on commutative languages. Annales Fennici Mathematici, (517). https://doi.org/10.5186/aasfm.1972.517