Sur le problème de la stratification des congruences de droites
Alois Švec (1960)
Czechoslovak Mathematical Journal
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Alois Švec (1960)
Czechoslovak Mathematical Journal
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Eduard Čech (1959)
Czechoslovak Mathematical Journal
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Karel Svoboda (1970)
Czechoslovak Mathematical Journal
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Alois Švec (1957)
Czechoslovak Mathematical Journal
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