@article{SJVM_2007_10_1_a1,
     author = {N. K. Bakirov},
     title = {Optimal error of numerical integration with regard to function values at integration points},
     journal = {Sibirskij \v{z}urnal vy\v{c}islitelʹnoj matematiki},
     pages = {29--42},
     publisher = {mathdoc},
     volume = {10},
     number = {1},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SJVM_2007_10_1_a1/}
}