@article{10_4007_annals_2010_172_2105,
     author = {Lex G. Oversteegen and Edward D. Tymchatyn},
     title = {Extending isotopies of planar continua},
     journal = {Annals of mathematics},
     pages = {2105--2133},
     publisher = {mathdoc},
     volume = {172},
     number = {3},
     year = {2010},
     doi = {10.4007/annals.2010.172.2105},
     mrnumber = {2726106},
     zbl = {1221.57035},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2010.172.2105/}
}