APA (7th ed.) Zitazioa
Otto, F. (1981). Regular Language over countably infinite Alphabets.
Chicago Style (17th ed.) Zitazioa
Otto, Friedrich. Regular Language over Countably Infinite Alphabets. Kaiserslautern, 1981.
MLA (9th ed.) Zitazioa
Otto, Friedrich. Regular Language over Countably Infinite Alphabets. 1981.
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