%0 Journal Article %A Hughes, Mark C %T Braiding link cobordisms and non-ribbon surfaces %J Algebraic and Geometric Topology %D 2015 %P 3707-3729 %V 15 %N 6 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2015.15.3707/ %R 10.2140/agt.2015.15.3707 %F 10_2140_agt_2015_15_3707