@article{BSMF_1986__114__123_0,
     author = {Zinsmeister, Michel},
     title = {A distortion theorem for quasiconformal mappings},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {123--133},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {114},
     year = {1986},
     doi = {10.24033/bsmf.2050},
     mrnumber = {88m:30061},
     zbl = {0602.30027},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/bsmf.2050/}
}