@article{TRSPY_1989_189_a1,
     author = {S. P. Baiborodov},
     title = {Approximation of functions by {Fourier} sums in systems of characters of zero-dimensional compact commutative groups},
     journal = {Informatics and Automation},
     pages = {21--33},
     publisher = {mathdoc},
     volume = {189},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1989_189_a1/}
}