@article{MZM_2001_70_1_a13,
     author = {R. M. Trigub},
     title = {Approximation of {Smooth} {Functions} and {Constants} by {Polynomials} with {Integer} and {Natural} {Coefficients}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {123--136},
     publisher = {mathdoc},
     volume = {70},
     number = {1},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2001_70_1_a13/}
}