Erratum to the paper "Semigroups containing covered one-sided ideals"
Imrich Fabrici (1985)
Mathematica Slovaca
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Imrich Fabrici (1985)
Mathematica Slovaca
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Kar-Ping Shum (1984)
Czechoslovak Mathematical Journal
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Maria Maddalena Miccoli, Bedřich Pondělíček (1989)
Czechoslovak Mathematical Journal
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