@article{IVM_2008_4_a6,
     author = {E. N. Sosov},
     title = {The relative {Chebyshev} center of a finite set in a geodesic space},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {66--72},
     publisher = {mathdoc},
     number = {4},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2008_4_a6/}
}