@article{MZ_1937__42_168740,
     author = {L. V., und H. G V. Ahlfors and H. Grunsky},
     title = {\"Uber die {Blochsche} {Konstante}},
     journal = {Mathematische Zeitschrift},
     pages = {671--673},
     publisher = {mathdoc},
     volume = {42},
     year = {1937},
     zbl = {63.0300.04},
     url = {http://geodesic.mathdoc.fr/item/MZ_1937__42_168740/}
}