%0 Journal Article %A Levine, Adam %A Ruberman, Daniel %A Strle, Sašo %T Nonorientable surfaces in homology cobordisms %J Geometry & topology %D 2015 %P 439-494 %V 19 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.2140/gt.2015.19.439/ %R 10.2140/gt.2015.19.439 %F GT_2015_19_1_a9