@article{TM_1997_219_a4,
     author = {V. V. Arestov and A. G. Babenko},
     title = {On {Delsarte} {Scheme} of {Estimating} the {Contact} {Numbers}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {44--73},
     publisher = {mathdoc},
     volume = {219},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1997_219_a4/}
}