@article{AFM_1980_5_1_a11,
     author = {Kari Hag and Marjatta N\"a\"at\"anen},
     title = {On the outer coefficient of quasiconformality of a cylindrical map of a convex dihedral wedge},
     journal = {Annales Fennici Mathematici},
     pages = {125--130},
     publisher = {mathdoc},
     volume = {5},
     number = {1},
     year = {1980},
     doi = {10.5186/aasfm.1980.0509},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1980.0509/}
}