%0 Journal Article %A D. V. Paduchikh %T The impact of 2-neighborhoods on graph structure %J Matematičeskie zametki %D 1997 %P 892-897 %V 62 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1997_62_6_a9/ %G ru %F MZM_1997_62_6_a9