%0 Journal Article %A M. B. Abrosimov %T On the Complexity of Some Problems Related to Graph Extensions %J Matematičeskie zametki %D 2010 %P 643-650 %V 88 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2010_88_5_a0/ %G ru %F MZM_2010_88_5_a0