%0 Journal Article
%A N. H. Ibragimov
%T Conformal invariance and Huygens' principle
%J Doklady Akademii Nauk
%D 1970
%P 24-27
%V 194
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1970_194_1_a4/
%G ru
%F DAN_1970_194_1_a4