@article{MZM_1969_5_3_a4,
     author = {V. I. Polovinkin},
     title = {Some estimates of norms of functionals of cubature formula errors},
     journal = {Matemati\v{c}eskie zametki},
     pages = {317--322},
     publisher = {mathdoc},
     volume = {5},
     number = {3},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1969_5_3_a4/}
}