%0 Journal Article %A V. I. Danchenko %T Estimates of norms and variations of rational constituents of %J Doklady Akademii Nauk %D 1985 %P 1043-1046 %V 280 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1985_280_5_a3/ %G ru %F DAN_1985_280_5_a3