%0 Journal Article %A B. V. Godun %T Weak $*$ derived sets of sets of linear functionals %J Matematičeskie zametki %D 1978 %P 607-616 %V 23 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1978_23_4_a12/ %G ru %F MZM_1978_23_4_a12