@article{MZM_1991_49_2_a15,
     author = {K. T. Mynbaev},
     title = {Optimal quadrature formulas for functions belonging to a weight class},
     journal = {Matemati\v{c}eskie zametki},
     pages = {133--140},
     publisher = {mathdoc},
     volume = {49},
     number = {2},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1991_49_2_a15/}
}