%0 Journal Article %A Kubota, Yosuke %A Schick, Thomas %T The Gromov–Lawson codimension 2 obstruction to positive scalar curvature and the C∗–index %J Geometry & topology %D 2021 %P 949-960 %V 25 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.2140/gt.2021.25.949/ %R 10.2140/gt.2021.25.949 %F GT_2021_25_2_a6