%0 Journal Article %A A. G. Khachaturyan %T A phenomenological theory of the symmetry of ordered phases %J Doklady Akademii Nauk %D 1966 %P 837-839 %V 171 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1966_171_4_a20/ %G ru %F DAN_1966_171_4_a20