%0 Journal Article %A Ya. N. Fel'd %T Diffraction of electromagnetic waves on unclosed screens %J Doklady Akademii Nauk %D 1973 %P 79-82 %V 212 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_212_1_a19/ %G ru %F DAN_1973_212_1_a19