%0 Journal Article %A E. N. Sosov %T On existence and uniqueness of Chebyshev center of bounded set in a~special geodesic space %J Lobachevskii journal of mathematics %D 2000 %P 43-45 %V 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/LJM_2000_7_a3/ %G en %F LJM_2000_7_a3