@article{10_4153_CMB_1994_052_9,
     author = {Hengartner, W.},
     title = {Distortion {Theorems} for {Diffeomorphisms}},
     journal = {Canadian mathematical bulletin},
     pages = {351--360},
     year = {1994},
     volume = {37},
     number = {3},
     doi = {10.4153/CMB-1994-052-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1994-052-9/}
}