@article{MZM_1989_45_4_a16,
     author = {A. V. Reztsov},
     title = {Optimal cubature formulas on classes of differentiable functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {121--124},
     publisher = {mathdoc},
     volume = {45},
     number = {4},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1989_45_4_a16/}
}