@article{MAN_1992__293_4_164968,
     author = {Toshiaki Hattori},
     title = {Geometry of quotient spaces of {SO} (3)  {SL} (3, {R)} by congruence subgroups.},
     journal = {Mathematische Annalen},
     pages = {443--468},
     publisher = {mathdoc},
     volume = {293},
     number = {4},
     year = {1992},
     zbl = {0769.53033},
     url = {http://geodesic.mathdoc.fr/item/MAN_1992__293_4_164968/}
}