%0 Journal Article %A A. A. Gryzlov %A E. S. Bastrykov %T Some centered systems of sets and points defined by them %J Trudy Instituta matematiki i mehaniki %D 2011 %P 76-82 %V 17 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/TIMM_2011_17_4_a6/ %G ru %F TIMM_2011_17_4_a6