@article{MAN_1992__292_2_164909,
     author = {Teruhiko Soma},
     title = {Function groups in {Kleinian} groups.},
     journal = {Mathematische Annalen},
     pages = {181--190},
     publisher = {mathdoc},
     volume = {292},
     number = {2},
     year = {1992},
     zbl = {0739.30033},
     url = {http://geodesic.mathdoc.fr/item/MAN_1992__292_2_164909/}
}