Tolerance distributive and tolerance Boolean varieties of semigroups
Bedřich Pondělíček (1986)
Czechoslovak Mathematical Journal
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Bedřich Pondělíček (1986)
Czechoslovak Mathematical Journal
Similarity:
Bedřich Pondělíček (1985)
Czechoslovak Mathematical Journal
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Bedřich Pondělíček (1992)
Czechoslovak Mathematical Journal
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