@article{MZM_1989_45_5_a7,
     author = {G. G. Rasputin},
     title = {A lower bound for the number of nodes in the cubature formula for a centrally symmetric integral},
     journal = {Matemati\v{c}eskie zametki},
     pages = {70--75},
     year = {1989},
     volume = {45},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1989_45_5_a7/}
}