%0 Journal Article %A Blair, Ryan %A Tomova, Maggy %T Width is not additive %J Geometry & topology %D 2013 %P 93-156 %V 17 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.2140/gt.2013.17.93/ %R 10.2140/gt.2013.17.93 %F GT_2013_17_1_a3