Harju, T.; Keesmaat, N. W.; Kleijn, H. C. M. The intersection problem for alphabetic vector monoids. (English) Zbl 0883.68077 RAIRO, Inform. Théor. Appl. 28, No. 3-4, 295-301 (1994). MSC: 68Q45 PDF BibTeX XML Cite \textit{T. Harju} et al., RAIRO, Inform. Théor. Appl. 28, No. 3--4, 295--301 (1994; Zbl 0883.68077) Full Text: DOI EuDML
Harju, T.; Kleijn, H. C. M.; Latteux, M.; Terlutte, A. Representation of rational functions with prefix and suffix codings. (English) Zbl 0823.68055 Theor. Comput. Sci. 134, No. 2, 403-413 (1994). MSC: 68Q42 68Q45 PDF BibTeX XML Cite \textit{T. Harju} et al., Theor. Comput. Sci. 134, No. 2, 403--413 (1994; Zbl 0823.68055) Full Text: DOI
Harju, T.; Kleijn, H. C. M. Morphisms and rational transducers. (English) Zbl 0848.68055 Bull. EATCS 51, 168-180 (1993). MSC: 68Q45 PDF BibTeX XML Cite \textit{T. Harju} and \textit{H. C. M. Kleijn}, Bull. EATCS 51, 168--180 (1993; Zbl 0848.68055)
Harju, T.; Kleijn, H. C. M.; Latteux, M. Deterministic sequential functions. (English) Zbl 0790.68036 Acta Inf. 29, No. 6-7, 545-554 (1992). MSC: 68Q05 68Q45 PDF BibTeX XML Cite \textit{T. Harju} et al., Acta Inf. 29, No. 6--7, 545--554 (1992; Zbl 0790.68036) Full Text: DOI
Harju, T.; Kleijn, H. C. M.; Latteux, M. Compositional representation of rational functions. (English) Zbl 0769.68097 RAIRO, Inform. Théor. Appl. 26, No. 3, 243-255 (1992). Reviewer: P.Turakainen (Oulu) MSC: 68Q45 PDF BibTeX XML Cite \textit{T. Harju} et al., RAIRO, Inform. Théor. Appl. 26, No. 3, 243--255 (1992; Zbl 0769.68097) Full Text: DOI EuDML
Harju, T.; Kleijn, H. C. M. Decidability problems for unary output sequential transducers. (English) Zbl 0743.68098 Discrete Appl. Math. 32, No. 2, 131-140 (1991). Reviewer: P.Turakainen (Oulu) MSC: 68Q45 PDF BibTeX XML Cite \textit{T. Harju} and \textit{H. C. M. Kleijn}, Discrete Appl. Math. 32, No. 2, 131--140 (1991; Zbl 0743.68098) Full Text: DOI
Harju, T.; Kleijn, H. C. M. Cardinality problems of compositions of morphisms and inverse morphisms. (English) Zbl 0685.68065 Math. Syst. Theory 22, No. 3, 151-159 (1989). MSC: 68Q45 20F10 08A50 03D40 PDF BibTeX XML Cite \textit{T. Harju} and \textit{H. C. M. Kleijn}, Math. Syst. Theory 22, No. 3, 151--159 (1989; Zbl 0685.68065) Full Text: DOI
Harju, T.; Karhumäki, J.; Kleijn, H. C. M. On morphic generation of regular languages. (English) Zbl 0604.68084 Discrete Appl. Math. 15, 55-60 (1986). Reviewer: G.Păun MSC: 68Q45 PDF BibTeX XML Cite \textit{T. Harju} et al., Discrete Appl. Math. 15, 55--60 (1986; Zbl 0604.68084) Full Text: DOI