-systems of unary algebras. I: On maximal and greatest -classes of the direct product of unary algebras
Imrich Abrhan, Ladislav Satko (1994)
Mathematica Slovaca
Similarity:
Imrich Abrhan, Ladislav Satko (1994)
Mathematica Slovaca
Similarity:
Miroslav Novotný (1990)
Archivum Mathematicum
Similarity:
Emília Halušková (2007)
Mathematica Slovaca
Similarity:
James S. Johnson (1969)
Colloquium Mathematicae
Similarity: