%0 Journal Article %A Yeats, Karen %T A Special Case of Completion Invariance for the c 2 Invariant of a Graph %J Canadian journal of mathematics %D 2018 %P 1416-1435 %V 70 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-2018-006-5/ %R 10.4153/CJM-2018-006-5 %F 10_4153_CJM_2018_006_5