On bicompacta which are unions of spaces defined by means of coverings
Evgenij G. Pytkeev, N. N. Yakovlev (1980)
Commentationes Mathematicae Universitatis Carolinae
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Evgenij G. Pytkeev, N. N. Yakovlev (1980)
Commentationes Mathematicae Universitatis Carolinae
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Commentationes Mathematicae Universitatis Carolinae
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