%0 Journal Article %A V. V. Gorbatsevich %T Discrete subgroups of solvable Lie groups of type~$(E)$ %J Sbornik. Mathematics %D 1971 %P 233-251 %V 14 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1971_14_2_a4/ %G en %F SM_1971_14_2_a4