Regular mappings of groupoids
Tomáš Kepka (1971)
Acta Universitatis Carolinae. Mathematica et Physica
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Tomáš Kepka (1971)
Acta Universitatis Carolinae. Mathematica et Physica
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Tomáš Kepka, Milan Trch (1995)
Acta Universitatis Carolinae. Mathematica et Physica
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Tomáš Kepka, M. Trch (1997)
Acta Universitatis Carolinae. Mathematica et Physica
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