@article{SM_1998_189_5_a0,
     author = {A. S. Belov},
     title = {Order estimates of the~modulus of variation of the~sum of a~lacunary trigonometric series},
     journal = {Sbornik. Mathematics},
     pages = {639--656},
     publisher = {mathdoc},
     volume = {189},
     number = {5},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1998_189_5_a0/}
}