%0 Journal Article %A Florin Constantinescu %T On Chebyshev sets %J Doklady Akademii Nauk %D 1960 %P 21-22 %V 130 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1960_130_1_a3/ %G ru %F DAN_1960_130_1_a3