%0 Journal Article %A M. A. Atakhodzhaev %T On a problem of M.\,M.~Lavrent'ev for the biharmonic equation in a rectangle %J Doklady Akademii Nauk %D 1983 %P 268-273 %V 268 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1983_268_2_a1/ %G ru %F DAN_1983_268_2_a1