@article{CMH_1972__47_139518,
     author = {F. Bachmann and L. Gr\"unenfelder},
     title = {\"Uber {Lie-Ringe} von {Gruppen} und ihre universellen {Enveloppen}},
     journal = {Commentarii mathematici Helvetici},
     pages = {332--340},
     publisher = {mathdoc},
     volume = {47},
     year = {1972},
     zbl = {0259.20034},
     url = {http://geodesic.mathdoc.fr/item/CMH_1972__47_139518/}
}