@article{DAN_1965_162_1_a3,
     author = {I. I. Ibragimov and R. M. Aliev},
     title = {Best quadrature formulae for certain classes of functions},
     journal = {Doklady Akademii Nauk},
     pages = {23--25},
     publisher = {mathdoc},
     volume = {162},
     number = {1},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_162_1_a3/}
}