%0 Journal Article %A V. L. Levin %T Duality theorems for a nontopological version of the mass transfer %J Doklady Akademii Nauk %D 1996 %P 588-591 %V 350 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1996_350_5_a2/ %G ru %F DAN_1996_350_5_a2