%0 Journal Article %A Darryl D. Holm %A Rossen I. Ivanov %T $G$-Strands and Peakon Collisions on $\rm{Diff}\,(\mathbb{R})$ %J Symmetry, integrability and geometry: methods and applications %D 2013 %V 9 %U http://geodesic.mathdoc.fr/item/SIGMA_2013_9_a26/ %G en %F SIGMA_2013_9_a26