%0 Journal Article %A N. Yu. Vlasova %T On contractible 5-vertex subgraphs of a 3-connected graph %J Zapiski Nauchnykh Seminarov POMI %D 2018 %P 22-40 %V 475 %U http://geodesic.mathdoc.fr/item/ZNSL_2018_475_a1/ %G ru %F ZNSL_2018_475_a1