@article{AFM_1990_15_2_a12,
     author = {P. Koskela and O. Martio},
     title = {Removability theorems for quasiregular mappings},
     journal = {Annales Fennici Mathematici},
     pages = {381--399},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {1990},
     doi = {10.5186/aasfm.1990.1518},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1990.1518/}
}