Chrobak, Marek Finite automata and unary languages. (English) Zbl 0638.68096 Theor. Comput. Sci. 47, 149-158 (1986). MSC: 68Q45 PDFBibTeX XMLCite \textit{M. Chrobak}, Theor. Comput. Sci. 47, 149--158 (1986; Zbl 0638.68096) Full Text: DOI
Goldstine, Jonathan Continuous operations on languages. (English) Zbl 0364.68068 Math. Syst. Theory 11, 29-46 (1977). MSC: 68Q45 PDFBibTeX XMLCite \textit{J. Goldstine}, Math. Syst. Theory 11, 29--46 (1977; Zbl 0364.68068) Full Text: DOI
Goldstine, J. Bounded AFLs. (English) Zbl 0331.68043 J. Comput. Syst. Sci. 12, 399-419 (1976). MSC: 68Q45 PDFBibTeX XMLCite \textit{J. Goldstine}, J. Comput. Syst. Sci. 12, 399--419 (1976; Zbl 0331.68043) Full Text: DOI