@article{MZ_1983__184_173370,
     author = {Franz G. Timmesfeld},
     title = {Tits {Geometries} and {Parabolic} {Systems} in {Finitely} {Generated} {Groups} {I.}},
     journal = {Mathematische Zeitschrift},
     pages = {377--396},
     publisher = {mathdoc},
     volume = {184},
     year = {1983},
     zbl = {0521.20007},
     url = {http://geodesic.mathdoc.fr/item/MZ_1983__184_173370/}
}