On a weak Kelley-Morse theory of classes
Wiktor V. Marek, Antonín Sochor (1978)
Commentationes Mathematicae Universitatis Carolinae
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Wiktor V. Marek, Antonín Sochor (1978)
Commentationes Mathematicae Universitatis Carolinae
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Antonín Sochor (1979)
Commentationes Mathematicae Universitatis Carolinae
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Karel Čuda (1983)
Commentationes Mathematicae Universitatis Carolinae
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