@article{IVM_2010_6_a4,
     author = {E. N. Sosov},
     title = {Sufficient conditions for existence and uniqueness of {a~Chebyshev} center of a~nonempty bounded set in a~geodesic space},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {47--51},
     publisher = {mathdoc},
     number = {6},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2010_6_a4/}
}