@article{DAN_1973_211_5_a12,
     author = {V. P. Motornyi},
     title = {On the best quadrature formula of the form $\sum_{k=1}^np_kf(x_k)$ for some classes of periodic differentiable functions},
     journal = {Doklady Akademii Nauk},
     pages = {1060--1062},
     publisher = {mathdoc},
     volume = {211},
     number = {5},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_211_5_a12/}
}