%0 Journal Article
%A N. Kh. Ibragimov
%A A. O. Oganesyan
%T The hierarchy of Huygens equations in spaces with a~non-trivial conformal group
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1991
%P 137-176
%V 46
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1991_46_3_a2/
%G en
%F RM_1991_46_3_a2