@article{IM_1992__109_2_144031,
     author = {Richard Weiss and John van Bon},
     title = {An existence lemma for groups generated by 3-transpositions.},
     journal = {Inventiones mathematicae},
     pages = {519--534},
     publisher = {mathdoc},
     volume = {109},
     number = {2},
     year = {1992},
     zbl = {0796.20013},
     url = {http://geodesic.mathdoc.fr/item/IM_1992__109_2_144031/}
}