%0 Journal Article %A A. N. Parshin %T Letter to the Editor concerning the paper ``Discontinuous groups on three-dimensional hyperbolic space: analytical theory and arithmetic applications'' by J.~Elstrodt, F.~Grunewald, and J.~Mennicke %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1983 %V 38 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1983_38_6_a28/ %G ru %F RM_1983_38_6_a28