@article{IM2_1967_1_3_a5,
     author = {A. L. Garkavi},
     title = {The {Helly} problem and best approximation in a space of continuous functions},
     journal = {Izvestiya. Mathematics },
     pages = {623--637},
     publisher = {mathdoc},
     volume = {1},
     number = {3},
     year = {1967},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1967_1_3_a5/}
}