%0 Journal Article %A A. Yu. Lemin %A Yu. M. Smirnov %T Isometry groups of metric and ultrametric spaces and their subgroups %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1986 %P 213-214 %V 41 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1986_41_6_a14/ %G en %F RM_1986_41_6_a14