%0 Journal Article %A I. M. Gel'fand %A V. A. Ponomarev %T A classification of the indecomposable infinitesimal representations of the Lorentz group %J Doklady Akademii Nauk %D 1967 %P 502-505 %V 176 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1967_176_3_a2/ %G ru %F DAN_1967_176_3_a2