On commutative languages

Authors

  • Timo Lepistö

DOI:

https://doi.org/10.5186/aasfm.1971.486

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Published

1971-01-16

How to Cite

Lepistö, T. (1971). On commutative languages. Annales Fennici Mathematici, 486. https://doi.org/10.5186/aasfm.1971.486