@article{MZM_1982_31_2_a11,
     author = {A. A. Zhensykbaev},
     title = {Extremal properties of monosplines and best quadrature formulas},
     journal = {Matemati\v{c}eskie zametki},
     pages = {281--298},
     publisher = {mathdoc},
     volume = {31},
     number = {2},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1982_31_2_a11/}
}