@article{SM_2010_201_11_a5,
     author = {I. I. Sharapudinov},
     title = {Approximating smooth functions using algebraic-trigonometric polynomials},
     journal = {Sbornik. Mathematics},
     pages = {1689--1713},
     publisher = {mathdoc},
     volume = {201},
     number = {11},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2010_201_11_a5/}
}