@article{CMH_1959__33_139159,
     author = {Albert Pfluger},
     title = {\"Uber die {\"Aquivalenz} der geometrischen und der analytischen {Definition} quasikonformer {Abbildungen.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {23--33},
     publisher = {mathdoc},
     volume = {33},
     year = {1959},
     zbl = {0082.29301},
     url = {http://geodesic.mathdoc.fr/item/CMH_1959__33_139159/}
}