%0 Journal Article %A C. G. Slobodnik %T An expanding system of linearly closed sets %J Matematičeskie zametki %D 1976 %P 67-84 %V 19 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1976_19_1_a7/ %G ru %F MZM_1976_19_1_a7