On atoms in lattices of primitive classes
Jaroslav Ježek (1970)
Commentationes Mathematicae Universitatis Carolinae
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Jaroslav Ježek (1970)
Commentationes Mathematicae Universitatis Carolinae
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Frankiewicz, Ryszard, Gutek, Andrzej
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Jaroslav Ježek (1971)
Commentationes Mathematicae Universitatis Carolinae
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