%0 Journal Article %A Yu. I. Kulakov %T On a new kind of symmetry underlying physical theory of phenomenological type %J Doklady Akademii Nauk %D 1971 %P 570-572 %V 201 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1971_201_3_a14/ %G ru %F DAN_1971_201_3_a14