%0 Journal Article
%A G. A. Gurzadyan
%T On the structure of planetary nebulae
%J Doklady Akademii Nauk
%D 1957
%P 1013-1016
%V 113
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1957_113_5_a17/
%G ru
%F DAN_1957_113_5_a17