@article{CMH_1978__53_139721,
     author = {Edgar Reich},
     title = {On the decomposition of a class of plane quasiconformal mappings.},
     journal = {Commentarii mathematici Helvetici},
     pages = {15--28},
     publisher = {mathdoc},
     volume = {53},
     year = {1978},
     zbl = {0369.30017},
     url = {http://geodesic.mathdoc.fr/item/CMH_1978__53_139721/}
}