Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1991_49_2_a18, author = {V. F. Lev}, title = {Quadrature formulas for classes with constraints on the {Fourier} coefficients}, journal = {Matemati\v{c}eskie zametki}, pages = {144--147}, publisher = {mathdoc}, volume = {49}, number = {2}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1991_49_2_a18/} }
V. F. Lev. Quadrature formulas for classes with constraints on the Fourier coefficients. Matematičeskie zametki, Tome 49 (1991) no. 2, pp. 144-147. http://geodesic.mathdoc.fr/item/MZM_1991_49_2_a18/