%0 Journal Article %A I. V. Bezmenov %T A new method, based on the variational principle, for the transfer %J Doklady Akademii Nauk %D 1993 %P 137-139 %V 330 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1993_330_2_a1/ %G ru %F DAN_1993_330_2_a1