On the product and sum of a system of transformation semigroups
Cor P. Baayen, Zdeněk Hedrlín (1963)
Commentationes Mathematicae Universitatis Carolinae
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Cor P. Baayen, Zdeněk Hedrlín (1963)
Commentationes Mathematicae Universitatis Carolinae
Similarity:
Cor P. Baayen, Zdeněk Hedrlín (1963)
Commentationes Mathematicae Universitatis Carolinae
Similarity:
Zdeněk Hedrlín (1962)
Commentationes Mathematicae Universitatis Carolinae
Similarity: