%0 Journal Article %A V. V. Proizvolov %T The cardinality of systems of open subsets in a dyadic bicompactum %J Doklady Akademii Nauk %D 1968 %P 38-39 %V 178 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_178_1_a8/ %G ru %F DAN_1968_178_1_a8