%0 Journal Article %A V. G. Kopp %T The isomorphisms that exist between certain subgroups of the groups of infinitesimal motions of Lorentz space and Euclidean and Galilean spaces %J Trudy Geometricheskogo Seminara %D 1974 %P 61-67 %V 7 %U http://geodesic.mathdoc.fr/item/KUTGS_1974_7_a7/ %G ru %F KUTGS_1974_7_a7