%0 Journal Article %A Yu. A. Kaz'min %T Theorem on bases-formation by near systems and its applications %J Matematičeskie zametki %D 1988 %P 80-88 %V 44 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1988_44_1_a7/ %G ru %F MZM_1988_44_1_a7