@article{DM_1989_1_2_a14,
     author = {V. A. Yudin},
     title = {Packings of balls in {Euclidean} space, and extremal problems for trigonometric polynomials},
     journal = {Diskretnaya Matematika},
     pages = {69--72},
     publisher = {mathdoc},
     volume = {1},
     number = {2},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1989_1_2_a14/}
}