@article{VMP_2011_12_3_a3,
     author = {K. A. Kirillov},
     title = {On error estimates for quadrature formulas exact for {Haar} polynomials},
     journal = {Numerical methods and programming},
     pages = {330--337},
     publisher = {mathdoc},
     volume = {12},
     number = {3},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMP_2011_12_3_a3/}
}