%0 Journal Article %A Karen Butt %T Approximate rigidity of the marked length spectrum %J Mathematics Research Reports %D 2023 %P 63-82 %V 4 %I MathOA foundation %U https://mrr.centre-mersenne.org/articles/10.5802/mrr.18/ %R 10.5802/mrr.18 %G en %F MRR_2023__4__63_0