%0 Journal Article %A G. I. Marchuk %T A contribution to the theory of biorthogonal expansions of the fields of meteorological elements %J Doklady Akademii Nauk %D 1968 %P 832-835 %V 179 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_179_4_a17/ %G ru %F DAN_1968_179_4_a17