@article{MRR_2023__4__63_0,
     author = {Karen Butt},
     title = {Approximate rigidity of the marked length spectrum},
     journal = {Mathematics Research Reports},
     pages = {63--82},
     publisher = {MathOA foundation},
     volume = {4},
     year = {2023},
     doi = {10.5802/mrr.18},
     language = {en},
     url = {https://mrr.centre-mersenne.org/articles/10.5802/mrr.18/}
}