@article{MAN_1891__39_157577,
     author = {L. Maurer},
     title = {Ueber continuirliche {Transformationsgruppen}},
     journal = {Mathematische Annalen},
     pages = {409--440},
     year = {1891},
     volume = {39},
     zbl = {23.0380.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1891__39_157577/}
}