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Translated fromAlgebra i Logika, Vol. 32, No. 3, pp. 288–307, May–June, 1993.
Translated by A. Mullagaliev
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Mordvinov, Y.L. Varieties whose countable embeddability skeletons are semilattices. Algebr Logic 32, 154–164 (1993). https://doi.org/10.1007/BF02261694
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DOI: https://doi.org/10.1007/BF02261694