@article{IM2_2001_65_5_a2,
     author = {K. Yu. Osipenko},
     title = {Best quadrature formulae on {Hardy--Sobolev} classes},
     journal = {Izvestiya. Mathematics },
     pages = {923--939},
     publisher = {mathdoc},
     volume = {65},
     number = {5},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2001_65_5_a2/}
}