@article{AIHPC_2016__33_1_23_0,
     author = {Lorent, Andrew},
     title = {Rigidity of pairs of quasiregular mappings whose symmetric part of gradient are close},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {23--65},
     publisher = {Elsevier},
     volume = {33},
     number = {1},
     year = {2016},
     doi = {10.1016/j.anihpc.2014.08.003},
     mrnumber = {3436426},
     zbl = {1328.30014},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.anihpc.2014.08.003/}
}