%0 Journal Article %A V. A. Vardanyan %T On periodicity in Hermitian theories %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1978 %P 253-254 %V 33 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1978_33_2_a21/ %G en %F RM_1978_33_2_a21