@article{MZ_1928__28_168044, author = {K., Faber}, title = {Eine {Klasse} von {Ber\"uhrungstransformationsgruppen} des {Raumes} z,x1,...,xn}, journal = {Mathematische Zeitschrift}, pages = {579--598}, publisher = {mathdoc}, volume = {28}, year = {1928}, zbl = {54.0448.03}, url = {http://geodesic.mathdoc.fr/item/MZ_1928__28_168044/} }