Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1961_140_4_a9, author = {R. M. Trigub}, title = {Approximation of functions by polynomials with integral coefficients}, journal = {Doklady Akademii Nauk}, pages = {773--775}, publisher = {mathdoc}, volume = {140}, number = {4}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1961_140_4_a9/} }
R. M. Trigub. Approximation of functions by polynomials with integral coefficients. Doklady Akademii Nauk, Tome 140 (1961) no. 4, pp. 773-775. http://geodesic.mathdoc.fr/item/DAN_1961_140_4_a9/