@article{AFM_1975_1_1_a0,
     author = {Jussi V\"ais\"al\"a},
     title = {Piecewise quasiconformal maps are quasiconformal},
     journal = {Annales Fennici Mathematici},
     pages = {3--6},
     publisher = {mathdoc},
     volume = {1},
     number = {1},
     year = {1975},
     doi = {10.5186/aasfm.1975.0129},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1975.0129/}
}