@article{10_4064_ap_46_1_165_170,
     author = {Reiner K\"uhnau},
     title = {Zur quasikonformen {Spanne}},
     journal = {Annales Polonici Mathematici},
     pages = {165--170},
     year = {1985},
     volume = {46},
     number = {1},
     doi = {10.4064/ap-46-1-165-170},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-46-1-165-170/}
}