%0 Journal Article %A A. G. Ramm %T Some nonlinear problems in the theory of antenna synthesis %J Doklady Akademii Nauk %D 1969 %P 1277-1280 %V 186 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_186_6_a11/ %G ru %F DAN_1969_186_6_a11