@article{RM_1964_19_6_a11,
     author = {A. L. Garkavi},
     title = {On the {Chebyshev} center and convex hull of a~set},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     publisher = {mathdoc},
     volume = {19},
     number = {6},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1964_19_6_a11/}
}